31185021

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{12479}}^1$

素因数の和:12513

約数の個数: 24

約数和(自身を含む): 51217920

約数和(自身を除く): 20032899

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 12479, 37437, 87353, 212143, 262059, 611471, 636429, 1485001, 1834413, 4455003, 10395007, 31185021]

約数ペア:

[(1, 31185021), (3, 10395007), (7, 4455003), (17, 1834413), (21, 1485001), (49, 636429), (51, 611471), (119, 262059), (147, 212143), (357, 87353), (833, 37437), (2499, 12479)]