20447007

素因数分解:

$3^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{2503}}^1$

素因数の和:2902

約数の個数: 16

約数和(自身を含む): 31249920

約数和(自身を除く): 10802913

約数列:

[1, 3, 7, 21, 389, 1167, 2503, 2723, 7509, 8169, 17521, 52563, 973667, 2921001, 6815669, 20447007]

約数ペア:

[(1, 20447007), (3, 6815669), (7, 2921001), (21, 973667), (389, 52563), (1167, 17521), (2503, 8169), (2723, 7509)]