18975186

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{491}}^1$

素因数の和:631

約数の個数: 48

約数和(自身を含む): 43748640

約数和(自身を除く): 24773454

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 113, 114, 171, 226, 339, 342, 491, 678, 982, 1017, 1473, 2034, 2147, 2946, 4294, 4419, 6441, 8838, 9329, 12882, 18658, 19323, 27987, 38646, 55483, 55974, 83961, 110966, 166449, 167922, 332898, 499347, 998694, 1054177, 2108354, 3162531, 6325062, 9487593, 18975186]

約数ペア:

[(1, 18975186), (2, 9487593), (3, 6325062), (6, 3162531), (9, 2108354), (18, 1054177), (19, 998694), (38, 499347), (57, 332898), (113, 167922), (114, 166449), (171, 110966), (226, 83961), (339, 55974), (342, 55483), (491, 38646), (678, 27987), (982, 19323), (1017, 18658), (1473, 12882), (2034, 9329), (2147, 8838), (2946, 6441), (4294, 4419)]