19729164

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:152

約数の個数: 144

約数和(自身を含む): 60328800

約数和(自身を除く): 40599636

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 29, 39, 42, 49, 52, 58, 78, 84, 87, 89, 91, 98, 116, 147, 156, 174, 178, 182, 196, 203, 267, 273, 294, 348, 356, 364, 377, 406, 534, 546, 588, 609, 623, 637, 754, 812, 1068, 1092, 1131, 1157, 1218, 1246, 1274, 1421, 1508, 1869, 1911, 2262, 2314, 2436, 2492, 2548, 2581, 2639, 2842, 3471, 3738, 3822, 4263, 4361, 4524, 4628, 5162, 5278, 5684, 6942, 7476, 7644, 7743, 7917, 8099, 8526, 8722, 10324, 10556, 13083, 13884, 15486, 15834, 16198, 17052, 17444, 18067, 18473, 24297, 26166, 30972, 31668, 32396, 33553, 36134, 36946, 48594, 52332, 54201, 55419, 56693, 67106, 72268, 73892, 97188, 100659, 108402, 110838, 113386, 126469, 134212, 170079, 201318, 216804, 221676, 226772, 234871, 252938, 340158, 379407, 402636, 469742, 505876, 680316, 704613, 758814, 939484, 1409226, 1517628, 1644097, 2818452, 3288194, 4932291, 6576388, 9864582, 19729164]

約数ペア:

[(1, 19729164), (2, 9864582), (3, 6576388), (4, 4932291), (6, 3288194), (7, 2818452), (12, 1644097), (13, 1517628), (14, 1409226), (21, 939484), (26, 758814), (28, 704613), (29, 680316), (39, 505876), (42, 469742), (49, 402636), (52, 379407), (58, 340158), (78, 252938), (84, 234871), (87, 226772), (89, 221676), (91, 216804), (98, 201318), (116, 170079), (147, 134212), (156, 126469), (174, 113386), (178, 110838), (182, 108402), (196, 100659), (203, 97188), (267, 73892), (273, 72268), (294, 67106), (348, 56693), (356, 55419), (364, 54201), (377, 52332), (406, 48594), (534, 36946), (546, 36134), (588, 33553), (609, 32396), (623, 31668), (637, 30972), (754, 26166), (812, 24297), (1068, 18473), (1092, 18067), (1131, 17444), (1157, 17052), (1218, 16198), (1246, 15834), (1274, 15486), (1421, 13884), (1508, 13083), (1869, 10556), (1911, 10324), (2262, 8722), (2314, 8526), (2436, 8099), (2492, 7917), (2548, 7743), (2581, 7644), (2639, 7476), (2842, 6942), (3471, 5684), (3738, 5278), (3822, 5162), (4263, 4628), (4361, 4524)]