642366

素因数分解:

$2^1\times 3^2\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:416

約数の個数: 24

約数和(自身を含む): 1407744

約数和(自身を除く): 765378

約数列:

[1, 2, 3, 6, 9, 18, 127, 254, 281, 381, 562, 762, 843, 1143, 1686, 2286, 2529, 5058, 35687, 71374, 107061, 214122, 321183, 642366]

約数ペア:

[(1, 642366), (2, 321183), (3, 214122), (6, 107061), (9, 71374), (18, 35687), (127, 5058), (254, 2529), (281, 2286), (381, 1686), (562, 1143), (762, 843)]