397424

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:488

約数の個数: 20

約数和(自身を含む): 784920

約数和(自身を除く): 387496

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 421, 472, 842, 944, 1684, 3368, 6736, 24839, 49678, 99356, 198712, 397424]

約数ペア:

[(1, 397424), (2, 198712), (4, 99356), (8, 49678), (16, 24839), (59, 6736), (118, 3368), (236, 1684), (421, 944), (472, 842)]