21871491

素因数分解:

$3^1\times {\mathrm{41}}^2\times {\mathrm{4337}}^1$

素因数の和:4422

約数の個数: 12

約数和(自身を含む): 29897496

約数和(自身を除く): 8026005

約数列:

[1, 3, 41, 123, 1681, 4337, 5043, 13011, 177817, 533451, 7290497, 21871491]

約数ペア:

[(1, 21871491), (3, 7290497), (41, 533451), (123, 177817), (1681, 13011), (4337, 5043)]