31100643

素因数分解:

$3^2\times 7^2\times {\mathrm{109}}^1\times {\mathrm{647}}^1$

素因数の和:776

約数の個数: 36

約数和(自身を含む): 52818480

約数和(自身を除く): 21717837

約数列:

[1, 3, 7, 9, 21, 49, 63, 109, 147, 327, 441, 647, 763, 981, 1941, 2289, 4529, 5341, 5823, 6867, 13587, 16023, 31703, 40761, 48069, 70523, 95109, 211569, 285327, 493661, 634707, 1480983, 3455627, 4442949, 10366881, 31100643]

約数ペア:

[(1, 31100643), (3, 10366881), (7, 4442949), (9, 3455627), (21, 1480983), (49, 634707), (63, 493661), (109, 285327), (147, 211569), (327, 95109), (441, 70523), (647, 48069), (763, 40761), (981, 31703), (1941, 16023), (2289, 13587), (4529, 6867), (5341, 5823)]