21769910

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{5171}}^1$

素因数の和:5599

約数の個数: 16

約数和(自身を含む): 39286512

約数和(自身を除く): 17516602

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 5171, 10342, 25855, 51710, 2176991, 4353982, 10884955, 21769910]

約数ペア:

[(1, 21769910), (2, 10884955), (5, 4353982), (10, 2176991), (421, 51710), (842, 25855), (2105, 10342), (4210, 5171)]