20421493

素因数分解:

${\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:332

約数の個数: 16

約数和(自身を含む): 22032000

約数和(自身を除く): 1610507

約数列:

[1, 23, 59, 101, 149, 1357, 2323, 3427, 5959, 8791, 15049, 137057, 202193, 346127, 887891, 20421493]

約数ペア:

[(1, 20421493), (23, 887891), (59, 346127), (101, 202193), (149, 137057), (1357, 15049), (2323, 8791), (3427, 5959)]