21247467

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{3041}}^1$

素因数の和:3198

約数の個数: 16

約数和(自身を含む): 30225312

約数和(自身を除く): 8977845

約数列:

[1, 3, 17, 51, 137, 411, 2329, 3041, 6987, 9123, 51697, 155091, 416617, 1249851, 7082489, 21247467]

約数ペア:

[(1, 21247467), (3, 7082489), (17, 1249851), (51, 416617), (137, 155091), (411, 51697), (2329, 9123), (3041, 6987)]