21856530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{728551}}^1$

素因数の和:728561

約数の個数: 16

約数和(自身を含む): 52455744

約数和(自身を除く): 30599214

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 728551, 1457102, 2185653, 3642755, 4371306, 7285510, 10928265, 21856530]

約数ペア:

[(1, 21856530), (2, 10928265), (3, 7285510), (5, 4371306), (6, 3642755), (10, 2185653), (15, 1457102), (30, 728551)]