18681156

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 51367680

約数和(自身を除く): 32686524

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 179, 223, 234, 358, 446, 468, 537, 669, 716, 892, 1074, 1338, 1611, 2007, 2148, 2327, 2676, 2899, 3222, 4014, 4654, 5798, 6444, 6981, 8028, 8697, 9308, 11596, 13962, 17394, 20943, 26091, 27924, 34788, 39917, 41886, 52182, 79834, 83772, 104364, 119751, 159668, 239502, 359253, 479004, 518921, 718506, 1037842, 1437012, 1556763, 2075684, 3113526, 4670289, 6227052, 9340578, 18681156]

約数ペア:

[(1, 18681156), (2, 9340578), (3, 6227052), (4, 4670289), (6, 3113526), (9, 2075684), (12, 1556763), (13, 1437012), (18, 1037842), (26, 718506), (36, 518921), (39, 479004), (52, 359253), (78, 239502), (117, 159668), (156, 119751), (179, 104364), (223, 83772), (234, 79834), (358, 52182), (446, 41886), (468, 39917), (537, 34788), (669, 27924), (716, 26091), (892, 20943), (1074, 17394), (1338, 13962), (1611, 11596), (2007, 9308), (2148, 8697), (2327, 8028), (2676, 6981), (2899, 6444), (3222, 5798), (4014, 4654)]