21550180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56711}}^1$

素因数の和:56739

約数の個数: 24

約数和(自身を含む): 47638080

約数和(自身を除く): 26087900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 56711, 113422, 226844, 283555, 567110, 1077509, 1134220, 2155018, 4310036, 5387545, 10775090, 21550180]

約数ペア:

[(1, 21550180), (2, 10775090), (4, 5387545), (5, 4310036), (10, 2155018), (19, 1134220), (20, 1077509), (38, 567110), (76, 283555), (95, 226844), (190, 113422), (380, 56711)]