257831231

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{5171}}^1$

素因数の和:5614

約数の個数: 16

約数和(自身を含む): 312802560

約数和(自身を除く): 54971329

約数列:

[1, 7, 17, 119, 419, 2933, 5171, 7123, 36197, 49861, 87907, 615349, 2166649, 15166543, 36833033, 257831231]

約数ペア:

[(1, 257831231), (7, 36833033), (17, 15166543), (119, 2166649), (419, 615349), (2933, 87907), (5171, 49861), (7123, 36197)]