20731868

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{313}}^1\times {\mathrm{571}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 37717680

約数和(自身を除く): 16985812

約数列:

[1, 2, 4, 29, 58, 116, 313, 571, 626, 1142, 1252, 2284, 9077, 16559, 18154, 33118, 36308, 66236, 178723, 357446, 714892, 5182967, 10365934, 20731868]

約数ペア:

[(1, 20731868), (2, 10365934), (4, 5182967), (29, 714892), (58, 357446), (116, 178723), (313, 66236), (571, 36308), (626, 33118), (1142, 18154), (1252, 16559), (2284, 9077)]