20646578

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{9209}}^1$

素因数の和:9289

約数の個数: 16

約数和(自身を含む): 33156000

約数和(自身を除く): 12509422

約数列:

[1, 2, 19, 38, 59, 118, 1121, 2242, 9209, 18418, 174971, 349942, 543331, 1086662, 10323289, 20646578]

約数ペア:

[(1, 20646578), (2, 10323289), (19, 1086662), (38, 543331), (59, 349942), (118, 174971), (1121, 18418), (2242, 9209)]