2021097220

素因数分解:

$2^2\times 5^1\times {\mathrm{4951}}^1\times {\mathrm{20411}}^1$

素因数の和:25371

約数の個数: 24

約数和(自身を含む): 4245369408

約数和(自身を除く): 2224272188

約数列:

[1, 2, 4, 5, 10, 20, 4951, 9902, 19804, 20411, 24755, 40822, 49510, 81644, 99020, 102055, 204110, 408220, 101054861, 202109722, 404219444, 505274305, 1010548610, 2021097220]

約数ペア:

[(1, 2021097220), (2, 1010548610), (4, 505274305), (5, 404219444), (10, 202109722), (20, 101054861), (4951, 408220), (9902, 204110), (19804, 102055), (20411, 99020), (24755, 81644), (40822, 49510)]