397965

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{617}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 652608

約数和(自身を除く): 254643

約数列:

[1, 3, 5, 15, 43, 129, 215, 617, 645, 1851, 3085, 9255, 26531, 79593, 132655, 397965]

約数ペア:

[(1, 397965), (3, 132655), (5, 79593), (15, 26531), (43, 9255), (129, 3085), (215, 1851), (617, 645)]