31978701

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1879}}^1$

素因数の和:1977

約数の個数: 24

約数和(自身を含む): 48488960

約数和(自身を除く): 16510259

約数列:

[1, 3, 9, 31, 61, 93, 183, 279, 549, 1879, 1891, 5637, 5673, 16911, 17019, 58249, 114619, 174747, 343857, 524241, 1031571, 3553189, 10659567, 31978701]

約数ペア:

[(1, 31978701), (3, 10659567), (9, 3553189), (31, 1031571), (61, 524241), (93, 343857), (183, 174747), (279, 114619), (549, 58249), (1879, 17019), (1891, 16911), (5637, 5673)]