21937072

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80651}}^1$

素因数の和:80676

約数の個数: 20

約数和(自身を含む): 45003816

約数和(自身を除く): 23066744

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80651, 161302, 322604, 645208, 1290416, 1371067, 2742134, 5484268, 10968536, 21937072]

約数ペア:

[(1, 21937072), (2, 10968536), (4, 5484268), (8, 2742134), (16, 1371067), (17, 1290416), (34, 645208), (68, 322604), (136, 161302), (272, 80651)]