21800590

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{44491}}^1$

素因数の和:44512

約数の個数: 24

約数和(自身を含む): 45648792

約数和(自身を除く): 23848202

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 44491, 88982, 222455, 311437, 444910, 622874, 1557185, 2180059, 3114370, 4360118, 10900295, 21800590]

約数ペア:

[(1, 21800590), (2, 10900295), (5, 4360118), (7, 3114370), (10, 2180059), (14, 1557185), (35, 622874), (49, 444910), (70, 311437), (98, 222455), (245, 88982), (490, 44491)]