19960731

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{3137}}^1$

素因数の和:3251

約数の個数: 24

約数和(自身を含む): 33287904

約数和(自身を除く): 13327173

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 2121, 3137, 6363, 9411, 21959, 28233, 65877, 197631, 316837, 950511, 2217859, 2851533, 6653577, 19960731]

約数ペア:

[(1, 19960731), (3, 6653577), (7, 2851533), (9, 2217859), (21, 950511), (63, 316837), (101, 197631), (303, 65877), (707, 28233), (909, 21959), (2121, 9411), (3137, 6363)]