20764518

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{617}}^1$

素因数の和:772

約数の個数: 32

約数和(自身を含む): 42716160

約数和(自身を除く): 21951642

約数列:

[1, 2, 3, 6, 71, 79, 142, 158, 213, 237, 426, 474, 617, 1234, 1851, 3702, 5609, 11218, 16827, 33654, 43807, 48743, 87614, 97486, 131421, 146229, 262842, 292458, 3460753, 6921506, 10382259, 20764518]

約数ペア:

[(1, 20764518), (2, 10382259), (3, 6921506), (6, 3460753), (71, 292458), (79, 262842), (142, 146229), (158, 131421), (213, 97486), (237, 87614), (426, 48743), (474, 43807), (617, 33654), (1234, 16827), (1851, 11218), (3702, 5609)]