21507376

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{122201}}^1$

素因数の和:122220

約数の個数: 20

約数和(自身を含む): 45459144

約数和(自身を除く): 23951768

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 122201, 244402, 488804, 977608, 1344211, 1955216, 2688422, 5376844, 10753688, 21507376]

約数ペア:

[(1, 21507376), (2, 10753688), (4, 5376844), (8, 2688422), (11, 1955216), (16, 1344211), (22, 977608), (44, 488804), (88, 244402), (176, 122201)]