21118818

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{502829}}^1$

素因数の和:502841

約数の個数: 16

約数和(自身を含む): 48271680

約数和(自身を除く): 27152862

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 502829, 1005658, 1508487, 3016974, 3519803, 7039606, 10559409, 21118818]

約数ペア:

[(1, 21118818), (2, 10559409), (3, 7039606), (6, 3519803), (7, 3016974), (14, 1508487), (21, 1005658), (42, 502829)]