21960920

素因数分解:

$2^3\times 5^1\times {\mathrm{549023}}^1$

素因数の和:549034

約数の個数: 16

約数和(自身を含む): 49412160

約数和(自身を除く): 27451240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 549023, 1098046, 2196092, 2745115, 4392184, 5490230, 10980460, 21960920]

約数ペア:

[(1, 21960920), (2, 10980460), (4, 5490230), (5, 4392184), (8, 2745115), (10, 2196092), (20, 1098046), (40, 549023)]