397364

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{821}}^1$

素因数の和:847

約数の個数: 18

約数和(自身を含む): 765282

約数和(自身を除く): 367918

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 821, 1642, 3284, 9031, 18062, 36124, 99341, 198682, 397364]

約数ペア:

[(1, 397364), (2, 198682), (4, 99341), (11, 36124), (22, 18062), (44, 9031), (121, 3284), (242, 1642), (484, 821)]