21673158

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1999}}^1$

素因数の和:2156

約数の個数: 32

約数和(自身を含む): 47040000

約数和(自身を除く): 25366842

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 139, 278, 417, 834, 1807, 1999, 3614, 3998, 5421, 5997, 10842, 11994, 25987, 51974, 77961, 155922, 277861, 555722, 833583, 1667166, 3612193, 7224386, 10836579, 21673158]

約数ペア:

[(1, 21673158), (2, 10836579), (3, 7224386), (6, 3612193), (13, 1667166), (26, 833583), (39, 555722), (78, 277861), (139, 155922), (278, 77961), (417, 51974), (834, 25987), (1807, 11994), (1999, 10842), (3614, 5997), (3998, 5421)]