20957915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{4591}}^1$

素因数の和:4690

約数の個数: 16

約数和(自身を含む): 27772416

約数和(自身を除く): 6814501

約数列:

[1, 5, 11, 55, 83, 415, 913, 4565, 4591, 22955, 50501, 252505, 381053, 1905265, 4191583, 20957915]

約数ペア:

[(1, 20957915), (5, 4191583), (11, 1905265), (55, 381053), (83, 252505), (415, 50501), (913, 22955), (4565, 4591)]