201872391

素因数分解:

$3^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{18451}}^1$

素因数の和:18982

約数の個数: 16

約数和(自身を含む): 308222208

約数和(自身を除く): 106349817

約数列:

[1, 3, 7, 21, 521, 1563, 3647, 10941, 18451, 55353, 129157, 387471, 9612971, 28838913, 67290797, 201872391]

約数ペア:

[(1, 201872391), (3, 67290797), (7, 28838913), (21, 9612971), (521, 387471), (1563, 129157), (3647, 55353), (10941, 18451)]