20565791715

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{27980669}}^1$

素因数の和:27980691

約数の個数: 24

約数和(自身を含む): 38277556560

約数和(自身を除く): 17711764845

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 27980669, 83942007, 139903345, 195864683, 419710035, 587594049, 979323415, 1371052781, 2937970245, 4113158343, 6855263905, 20565791715]

約数ペア:

[(1, 20565791715), (3, 6855263905), (5, 4113158343), (7, 2937970245), (15, 1371052781), (21, 979323415), (35, 587594049), (49, 419710035), (105, 195864683), (147, 139903345), (245, 83942007), (735, 27980669)]