18466461

素因数分解:

$3^4\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 60

約数和(自身を含む): 31885920

約数和(自身を除く): 13419459

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 71, 81, 117, 169, 171, 213, 247, 351, 507, 513, 639, 741, 923, 1053, 1349, 1521, 1539, 1917, 2223, 2769, 3211, 4047, 4563, 5751, 6669, 8307, 9633, 11999, 12141, 13689, 17537, 20007, 24921, 28899, 35997, 36423, 52611, 74763, 86697, 107991, 109269, 157833, 227981, 260091, 323973, 473499, 683943, 971919, 1420497, 2051829, 6155487, 18466461]

約数ペア:

[(1, 18466461), (3, 6155487), (9, 2051829), (13, 1420497), (19, 971919), (27, 683943), (39, 473499), (57, 323973), (71, 260091), (81, 227981), (117, 157833), (169, 109269), (171, 107991), (213, 86697), (247, 74763), (351, 52611), (507, 36423), (513, 35997), (639, 28899), (741, 24921), (923, 20007), (1053, 17537), (1349, 13689), (1521, 12141), (1539, 11999), (1917, 9633), (2223, 8307), (2769, 6669), (3211, 5751), (4047, 4563)]