20389928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{3323}}^1$

素因数の和:3401

約数の個数: 32

約数和(自身を含む): 41882400

約数和(自身を除く): 21492472

約数列:

[1, 2, 4, 8, 13, 26, 52, 59, 104, 118, 236, 472, 767, 1534, 3068, 3323, 6136, 6646, 13292, 26584, 43199, 86398, 172796, 196057, 345592, 392114, 784228, 1568456, 2548741, 5097482, 10194964, 20389928]

約数ペア:

[(1, 20389928), (2, 10194964), (4, 5097482), (8, 2548741), (13, 1568456), (26, 784228), (52, 392114), (59, 345592), (104, 196057), (118, 172796), (236, 86398), (472, 43199), (767, 26584), (1534, 13292), (3068, 6646), (3323, 6136)]