21617740

素因数分解:

$2^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{4639}}^1$

素因数の和:4881

約数の個数: 24

約数和(自身を含む): 45601920

約数和(自身を除く): 23984180

約数列:

[1, 2, 4, 5, 10, 20, 233, 466, 932, 1165, 2330, 4639, 4660, 9278, 18556, 23195, 46390, 92780, 1080887, 2161774, 4323548, 5404435, 10808870, 21617740]

約数ペア:

[(1, 21617740), (2, 10808870), (4, 5404435), (5, 4323548), (10, 2161774), (20, 1080887), (233, 92780), (466, 46390), (932, 23195), (1165, 18556), (2330, 9278), (4639, 4660)]