20313321

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{6959}}^1$

素因数の和:7108

約数の個数: 16

約数和(自身を含む): 31180800

約数和(自身を除く): 10867479

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 6959, 20877, 48713, 146139, 967301, 2901903, 6771107, 20313321]

約数ペア:

[(1, 20313321), (3, 6771107), (7, 2901903), (21, 967301), (139, 146139), (417, 48713), (973, 20877), (2919, 6959)]