21051429

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{2017}}^1$

素因数の和:2105

約数の個数: 24

約数和(自身を含む): 33127488

約数和(自身を除く): 12076059

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 2017, 3479, 6051, 10437, 14119, 42357, 98833, 143207, 296499, 429621, 1002449, 3007347, 7017143, 21051429]

約数ペア:

[(1, 21051429), (3, 7017143), (7, 3007347), (21, 1002449), (49, 429621), (71, 296499), (147, 143207), (213, 98833), (497, 42357), (1491, 14119), (2017, 10437), (3479, 6051)]