21038084

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{787}}^1$

素因数の和:995

約数の個数: 24

約数和(自身を含む): 37994208

約数和(自身を除く): 16956124

約数列:

[1, 2, 4, 41, 82, 163, 164, 326, 652, 787, 1574, 3148, 6683, 13366, 26732, 32267, 64534, 128281, 129068, 256562, 513124, 5259521, 10519042, 21038084]

約数ペア:

[(1, 21038084), (2, 10519042), (4, 5259521), (41, 513124), (82, 256562), (163, 129068), (164, 128281), (326, 64534), (652, 32267), (787, 26732), (1574, 13366), (3148, 6683)]