389968281

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{610279}}^1$

素因数の和:610356

約数の個数: 12

約数和(自身を含む): 571222080

約数和(自身を除く): 181253799

約数列:

[1, 3, 9, 71, 213, 639, 610279, 1830837, 5492511, 43329809, 129989427, 389968281]

約数ペア:

[(1, 389968281), (3, 129989427), (9, 43329809), (71, 5492511), (213, 1830837), (639, 610279)]