19953479

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{7561}}^1$

素因数の和:7610

約数の個数: 16

約数和(自身を含む): 25408320

約数和(自身を除く): 5454841

約数列:

[1, 7, 13, 29, 91, 203, 377, 2639, 7561, 52927, 98293, 219269, 688051, 1534883, 2850497, 19953479]

約数ペア:

[(1, 19953479), (7, 2850497), (13, 1534883), (29, 688051), (91, 219269), (203, 98293), (377, 52927), (2639, 7561)]