18784996

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{13009}}^1$

素因数の和:13051

約数の個数: 18

約数和(自身を含む): 34697670

約数和(自身を除く): 15912674

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 13009, 26018, 52036, 247171, 494342, 988684, 4696249, 9392498, 18784996]

約数ペア:

[(1, 18784996), (2, 9392498), (4, 4696249), (19, 988684), (38, 494342), (76, 247171), (361, 52036), (722, 26018), (1444, 13009)]