399973281

素因数分解:

$3^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1\times {\mathrm{2111}}^1$

素因数の和:2712

約数の個数: 16

約数和(自身を含む): 538610688

約数和(自身を除く): 138637407

約数列:

[1, 3, 137, 411, 461, 1383, 2111, 6333, 63157, 189471, 289207, 867621, 973171, 2919513, 133324427, 399973281]

約数ペア:

[(1, 399973281), (3, 133324427), (137, 2919513), (411, 973171), (461, 867621), (1383, 289207), (2111, 189471), (6333, 63157)]