397789436

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{821879}}^1$

素因数の和:821905

約数の個数: 18

約数和(自身を含む): 765170280

約数和(自身を除く): 367380844

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 821879, 1643758, 3287516, 9040669, 18081338, 36162676, 99447359, 198894718, 397789436]

約数ペア:

[(1, 397789436), (2, 198894718), (4, 99447359), (11, 36162676), (22, 18081338), (44, 9040669), (121, 3287516), (242, 1643758), (484, 821879)]