20805392

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21317}}^1$

素因数の和:21386

約数の個数: 20

約数和(自身を含む): 40973196

約数和(自身を除く): 20167804

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21317, 42634, 85268, 170536, 341072, 1300337, 2600674, 5201348, 10402696, 20805392]

約数ペア:

[(1, 20805392), (2, 10402696), (4, 5201348), (8, 2600674), (16, 1300337), (61, 341072), (122, 170536), (244, 85268), (488, 42634), (976, 21317)]