212996956

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{821}}^2$

素因数の和:1725

約数の個数: 18

約数和(自身を含む): 377923280

約数和(自身を除く): 164926324

約数列:

[1, 2, 4, 79, 158, 316, 821, 1642, 3284, 64859, 129718, 259436, 674041, 1348082, 2696164, 53249239, 106498478, 212996956]

約数ペア:

[(1, 212996956), (2, 106498478), (4, 53249239), (79, 2696164), (158, 1348082), (316, 674041), (821, 259436), (1642, 129718), (3284, 64859)]