20644047

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1213}}^1$

素因数の和:1311

約数の個数: 24

約数和(自身を含む): 31311488

約数和(自身を除く): 10667441

約数列:

[1, 3, 9, 31, 61, 93, 183, 279, 549, 1213, 1891, 3639, 5673, 10917, 17019, 37603, 73993, 112809, 221979, 338427, 665937, 2293783, 6881349, 20644047]

約数ペア:

[(1, 20644047), (3, 6881349), (9, 2293783), (31, 665937), (61, 338427), (93, 221979), (183, 112809), (279, 73993), (549, 37603), (1213, 17019), (1891, 10917), (3639, 5673)]