20008023

素因数分解:

$3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1039}}^1$

素因数の和:1187

約数の個数: 24

約数和(自身を含む): 31299840

約数和(自身を除く): 11291817

約数列:

[1, 3, 7, 21, 49, 131, 147, 393, 917, 1039, 2751, 3117, 6419, 7273, 19257, 21819, 50911, 136109, 152733, 408327, 952763, 2858289, 6669341, 20008023]

約数ペア:

[(1, 20008023), (3, 6669341), (7, 2858289), (21, 952763), (49, 408327), (131, 152733), (147, 136109), (393, 50911), (917, 21819), (1039, 19257), (2751, 7273), (3117, 6419)]