25420521

素因数分解:

$3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{3943}}^1$

素因数の和:4260

約数の個数: 16

約数和(自身を含む): 38872064

約数和(自身を除く): 13451543

約数列:

[1, 3, 7, 21, 307, 921, 2149, 3943, 6447, 11829, 27601, 82803, 1210501, 3631503, 8473507, 25420521]

約数ペア:

[(1, 25420521), (3, 8473507), (7, 3631503), (21, 1210501), (307, 82803), (921, 27601), (2149, 11829), (3943, 6447)]