20500879

素因数分解:

$7^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{271}}^1$

素因数の和:486

約数の個数: 16

約数和(自身を含む): 23970816

約数和(自身を除く): 3469937

約数列:

[1, 7, 101, 107, 271, 707, 749, 1897, 10807, 27371, 28997, 75649, 191597, 202979, 2928697, 20500879]

約数ペア:

[(1, 20500879), (7, 2928697), (101, 202979), (107, 191597), (271, 75649), (707, 28997), (749, 27371), (1897, 10807)]