21961550120

素因数分解:

$2^3\times 5^1\times {\mathrm{549038753}}^1$

素因数の和:549038764

約数の個数: 16

約数和(自身を含む): 49413487860

約数和(自身を除く): 27451937740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 549038753, 1098077506, 2196155012, 2745193765, 4392310024, 5490387530, 10980775060, 21961550120]

約数ペア:

[(1, 21961550120), (2, 10980775060), (4, 5490387530), (5, 4392310024), (8, 2745193765), (10, 2196155012), (20, 1098077506), (40, 549038753)]