15621081

素因数分解:

$3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{2423}}^1$

素因数の和:2740

約数の個数: 16

約数和(自身を含む): 23890944

約数和(自身を除く): 8269863

約数列:

[1, 3, 7, 21, 307, 921, 2149, 2423, 6447, 7269, 16961, 50883, 743861, 2231583, 5207027, 15621081]

約数ペア:

[(1, 15621081), (3, 5207027), (7, 2231583), (21, 743861), (307, 50883), (921, 16961), (2149, 7269), (2423, 6447)]