21293392

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21817}}^1$

素因数の和:21886

約数の個数: 20

約数和(自身を含む): 41934196

約数和(自身を除く): 20640804

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21817, 43634, 87268, 174536, 349072, 1330837, 2661674, 5323348, 10646696, 21293392]

約数ペア:

[(1, 21293392), (2, 10646696), (4, 5323348), (8, 2661674), (16, 1330837), (61, 349072), (122, 174536), (244, 87268), (488, 43634), (976, 21817)]