20715877

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1913}}^1$

素因数の和:1957

約数の個数: 24

約数和(自身を含む): 27492696

約数和(自身を除く): 6776819

約数列:

[1, 7, 13, 17, 49, 91, 119, 221, 637, 833, 1547, 1913, 10829, 13391, 24869, 32521, 93737, 174083, 227647, 422773, 1218581, 1593529, 2959411, 20715877]

約数ペア:

[(1, 20715877), (7, 2959411), (13, 1593529), (17, 1218581), (49, 422773), (91, 227647), (119, 174083), (221, 93737), (637, 32521), (833, 24869), (1547, 13391), (1913, 10829)]