31210881

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 46569600

約数和(自身を除く): 15358719

約数列:

[1, 3, 13, 39, 41, 123, 131, 149, 393, 447, 533, 1599, 1703, 1937, 5109, 5371, 5811, 6109, 16113, 18327, 19519, 58557, 69823, 79417, 209469, 238251, 253747, 761241, 800279, 2400837, 10403627, 31210881]

約数ペア:

[(1, 31210881), (3, 10403627), (13, 2400837), (39, 800279), (41, 761241), (123, 253747), (131, 238251), (149, 209469), (393, 79417), (447, 69823), (533, 58557), (1599, 19519), (1703, 18327), (1937, 16113), (5109, 6109), (5371, 5811)]