18979974

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1423}}^1$

素因数の和:1466

約数の個数: 64

約数和(自身を含む): 47846400

約数和(自身を除く): 28866426

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 38, 39, 54, 57, 78, 114, 117, 171, 234, 247, 342, 351, 494, 513, 702, 741, 1026, 1423, 1482, 2223, 2846, 4269, 4446, 6669, 8538, 12807, 13338, 18499, 25614, 27037, 36998, 38421, 54074, 55497, 76842, 81111, 110994, 162222, 166491, 243333, 332982, 351481, 486666, 499473, 702962, 729999, 998946, 1054443, 1459998, 2108886, 3163329, 6326658, 9489987, 18979974]

約数ペア:

[(1, 18979974), (2, 9489987), (3, 6326658), (6, 3163329), (9, 2108886), (13, 1459998), (18, 1054443), (19, 998946), (26, 729999), (27, 702962), (38, 499473), (39, 486666), (54, 351481), (57, 332982), (78, 243333), (114, 166491), (117, 162222), (171, 110994), (234, 81111), (247, 76842), (342, 55497), (351, 54074), (494, 38421), (513, 36998), (702, 27037), (741, 25614), (1026, 18499), (1423, 13338), (1482, 12807), (2223, 8538), (2846, 6669), (4269, 4446)]