20739492081

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:257

約数の個数: 216

約数和(自身を含む): 40693190720

約数和(自身を除く): 19953698639

約数列:

[1, 3, 7, 9, 11, 21, 23, 33, 37, 63, 69, 77, 99, 111, 121, 139, 161, 207, 231, 253, 259, 333, 363, 407, 417, 483, 529, 693, 759, 777, 847, 851, 973, 1089, 1221, 1251, 1449, 1529, 1587, 1771, 2277, 2331, 2541, 2553, 2783, 2849, 2919, 3197, 3663, 3703, 4477, 4587, 4761, 5143, 5313, 5819, 5957, 7623, 7659, 8349, 8547, 8757, 9361, 9591, 10703, 11109, 13431, 13761, 15429, 15939, 16819, 17457, 17871, 19481, 19573, 22379, 25047, 25641, 28083, 28773, 31339, 32109, 33327, 35167, 36001, 40293, 40733, 46287, 50457, 52371, 53613, 56573, 58443, 58719, 64009, 65527, 67137, 73531, 84249, 94017, 96327, 102971, 105501, 108003, 117733, 118289, 122199, 137011, 151371, 169719, 175329, 176157, 192027, 196581, 201411, 215303, 220593, 246169, 282051, 308913, 316503, 324009, 353199, 354867, 366597, 386837, 396011, 411033, 448063, 509157, 514717, 576081, 589743, 622303, 645909, 661779, 720797, 738507, 808841, 828023, 926739, 1059597, 1064601, 1160511, 1188033, 1233099, 1301179, 1344189, 1507121, 1544151, 1866909, 1937727, 2162391, 2215521, 2368333, 2426523, 2484069, 2707859, 2720647, 3481533, 3564099, 3903537, 4032567, 4356121, 4521363, 4632453, 5600727, 5661887, 6487173, 7104999, 7279569, 7452207, 8123577, 8161941, 8897251, 9108253, 11710611, 13068363, 13564089, 14312969, 16578331, 16985661, 19044529, 21314997, 24370731, 24485823, 26691753, 27324759, 29927117, 39205089, 42938907, 49734993, 50956983, 57133587, 62280757, 80075259, 81974277, 89781351, 100190783, 128816721, 149204979, 171400761, 186842271, 209489819, 269344053, 300572349, 329198287, 560526813, 628469457, 901717047, 987594861, 1885408371, 2304388009, 2962784583, 6913164027, 20739492081]

約数ペア:

[(1, 20739492081), (3, 6913164027), (7, 2962784583), (9, 2304388009), (11, 1885408371), (21, 987594861), (23, 901717047), (33, 628469457), (37, 560526813), (63, 329198287), (69, 300572349), (77, 269344053), (99, 209489819), (111, 186842271), (121, 171400761), (139, 149204979), (161, 128816721), (207, 100190783), (231, 89781351), (253, 81974277), (259, 80075259), (333, 62280757), (363, 57133587), (407, 50956983), (417, 49734993), (483, 42938907), (529, 39205089), (693, 29927117), (759, 27324759), (777, 26691753), (847, 24485823), (851, 24370731), (973, 21314997), (1089, 19044529), (1221, 16985661), (1251, 16578331), (1449, 14312969), (1529, 13564089), (1587, 13068363), (1771, 11710611), (2277, 9108253), (2331, 8897251), (2541, 8161941), (2553, 8123577), (2783, 7452207), (2849, 7279569), (2919, 7104999), (3197, 6487173), (3663, 5661887), (3703, 5600727), (4477, 4632453), (4587, 4521363), (4761, 4356121), (5143, 4032567), (5313, 3903537), (5819, 3564099), (5957, 3481533), (7623, 2720647), (7659, 2707859), (8349, 2484069), (8547, 2426523), (8757, 2368333), (9361, 2215521), (9591, 2162391), (10703, 1937727), (11109, 1866909), (13431, 1544151), (13761, 1507121), (15429, 1344189), (15939, 1301179), (16819, 1233099), (17457, 1188033), (17871, 1160511), (19481, 1064601), (19573, 1059597), (22379, 926739), (25047, 828023), (25641, 808841), (28083, 738507), (28773, 720797), (31339, 661779), (32109, 645909), (33327, 622303), (35167, 589743), (36001, 576081), (40293, 514717), (40733, 509157), (46287, 448063), (50457, 411033), (52371, 396011), (53613, 386837), (56573, 366597), (58443, 354867), (58719, 353199), (64009, 324009), (65527, 316503), (67137, 308913), (73531, 282051), (84249, 246169), (94017, 220593), (96327, 215303), (102971, 201411), (105501, 196581), (108003, 192027), (117733, 176157), (118289, 175329), (122199, 169719), (137011, 151371)]