21947792

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{33457}}^1$

素因数の和:33506

約数の個数: 20

約数和(自身を含む): 43562316

約数和(自身を除く): 21614524

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 33457, 66914, 133828, 267656, 535312, 1371737, 2743474, 5486948, 10973896, 21947792]

約数ペア:

[(1, 21947792), (2, 10973896), (4, 5486948), (8, 2743474), (16, 1371737), (41, 535312), (82, 267656), (164, 133828), (328, 66914), (656, 33457)]