890421

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:508

約数の個数: 16

約数和(自身を含む): 1372800

約数和(自身を除く): 482379

約数列:

[1, 3, 7, 21, 109, 327, 389, 763, 1167, 2289, 2723, 8169, 42401, 127203, 296807, 890421]

約数ペア:

[(1, 890421), (3, 296807), (7, 127203), (21, 42401), (109, 8169), (327, 2723), (389, 2289), (763, 1167)]