21217854

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{505187}}^1$

素因数の和:505199

約数の個数: 16

約数和(自身を含む): 48498048

約数和(自身を除く): 27280194

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 505187, 1010374, 1515561, 3031122, 3536309, 7072618, 10608927, 21217854]

約数ペア:

[(1, 21217854), (2, 10608927), (3, 7072618), (6, 3536309), (7, 3031122), (14, 1515561), (21, 1010374), (42, 505187)]