21009901891

素因数分解:

${\mathrm{11}}^1\times {\mathrm{4729}}^1\times {\mathrm{403889}}^1$

素因数の和:408629

約数の個数: 8

約数和(自身を含む): 22924796400

約数和(自身を除く): 1914894509

約数列:

[1, 11, 4729, 52019, 403889, 4442779, 1909991081, 21009901891]

約数ペア:

[(1, 21009901891), (11, 1909991081), (4729, 4442779), (52019, 403889)]