64139439

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2281}}^1$

素因数の和:2407

約数の個数: 32

約数和(自身を含む): 106322944

約数和(自身を除く): 42183505

約数列:

[1, 3, 7, 13, 21, 39, 91, 103, 273, 309, 721, 1339, 2163, 2281, 4017, 6843, 9373, 15967, 28119, 29653, 47901, 88959, 207571, 234943, 622713, 704829, 1644601, 3054259, 4933803, 9162777, 21379813, 64139439]

約数ペア:

[(1, 64139439), (3, 21379813), (7, 9162777), (13, 4933803), (21, 3054259), (39, 1644601), (91, 704829), (103, 622713), (273, 234943), (309, 207571), (721, 88959), (1339, 47901), (2163, 29653), (2281, 28119), (4017, 15967), (6843, 9373)]