20998874

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{2131}}^1$

素因数の和:2525

約数の個数: 16

約数和(自身を含む): 34026720

約数和(自身を除く): 13027846

約数列:

[1, 2, 13, 26, 379, 758, 2131, 4262, 4927, 9854, 27703, 55406, 807649, 1615298, 10499437, 20998874]

約数ペア:

[(1, 20998874), (2, 10499437), (13, 1615298), (26, 807649), (379, 55406), (758, 27703), (2131, 9854), (4262, 4927)]