21965392

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{12149}}^1$

素因数の和:12270

約数の個数: 20

約数和(自身を含む): 42938100

約数和(自身を除く): 20972708

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 12149, 24298, 48596, 97192, 194384, 1372837, 2745674, 5491348, 10982696, 21965392]

約数ペア:

[(1, 21965392), (2, 10982696), (4, 5491348), (8, 2745674), (16, 1372837), (113, 194384), (226, 97192), (452, 48596), (904, 24298), (1808, 12149)]