20809411

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{7603}}^1$

素因数の和:7650

約数の個数: 16

約数和(自身を含む): 26279424

約数和(自身を除く): 5470013

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 7603, 53221, 129251, 174869, 904757, 1224083, 2972773, 20809411]

約数ペア:

[(1, 20809411), (7, 2972773), (17, 1224083), (23, 904757), (119, 174869), (161, 129251), (391, 53221), (2737, 7603)]