21000307068

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{271}}^2$

素因数の和:625

約数の個数: 162

約数和(自身を含む): 58922044272

約数和(自身を除く): 37921737204

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 47, 52, 78, 94, 117, 141, 156, 169, 188, 234, 271, 282, 338, 423, 468, 507, 542, 564, 611, 676, 813, 846, 1014, 1084, 1222, 1521, 1626, 1692, 1833, 2028, 2439, 2444, 3042, 3252, 3523, 3666, 4878, 5499, 6084, 7046, 7332, 7943, 9756, 10569, 10998, 12737, 14092, 15886, 21138, 21996, 23829, 25474, 31707, 31772, 38211, 42276, 45799, 47658, 50948, 63414, 71487, 73441, 76422, 91598, 95316, 114633, 126828, 137397, 142974, 146882, 152844, 165581, 183196, 220323, 229266, 274794, 285948, 293764, 331162, 412191, 440646, 458532, 496743, 549588, 660969, 662324, 824382, 881292, 954733, 993486, 1321938, 1490229, 1648764, 1909466, 1986972, 2152553, 2643876, 2864199, 2980458, 3451727, 3818932, 4305106, 5728398, 5960916, 6457659, 6903454, 8592597, 8610212, 10355181, 11456796, 12411529, 12915318, 13806908, 17185194, 19372977, 20710362, 24823058, 25830636, 31065543, 34370388, 37234587, 38745954, 41420724, 44872451, 49646116, 62131086, 74469174, 77491908, 89744902, 111703761, 124262172, 134617353, 148938348, 179489804, 223407522, 269234706, 403852059, 446815044, 538469412, 583341863, 807704118, 1166683726, 1615408236, 1750025589, 2333367452, 3500051178, 5250076767, 7000102356, 10500153534, 21000307068]

約数ペア:

[(1, 21000307068), (2, 10500153534), (3, 7000102356), (4, 5250076767), (6, 3500051178), (9, 2333367452), (12, 1750025589), (13, 1615408236), (18, 1166683726), (26, 807704118), (36, 583341863), (39, 538469412), (47, 446815044), (52, 403852059), (78, 269234706), (94, 223407522), (117, 179489804), (141, 148938348), (156, 134617353), (169, 124262172), (188, 111703761), (234, 89744902), (271, 77491908), (282, 74469174), (338, 62131086), (423, 49646116), (468, 44872451), (507, 41420724), (542, 38745954), (564, 37234587), (611, 34370388), (676, 31065543), (813, 25830636), (846, 24823058), (1014, 20710362), (1084, 19372977), (1222, 17185194), (1521, 13806908), (1626, 12915318), (1692, 12411529), (1833, 11456796), (2028, 10355181), (2439, 8610212), (2444, 8592597), (3042, 6903454), (3252, 6457659), (3523, 5960916), (3666, 5728398), (4878, 4305106), (5499, 3818932), (6084, 3451727), (7046, 2980458), (7332, 2864199), (7943, 2643876), (9756, 2152553), (10569, 1986972), (10998, 1909466), (12737, 1648764), (14092, 1490229), (15886, 1321938), (21138, 993486), (21996, 954733), (23829, 881292), (25474, 824382), (31707, 662324), (31772, 660969), (38211, 549588), (42276, 496743), (45799, 458532), (47658, 440646), (50948, 412191), (63414, 331162), (71487, 293764), (73441, 285948), (76422, 274794), (91598, 229266), (95316, 220323), (114633, 183196), (126828, 165581), (137397, 152844), (142974, 146882)]