21371258

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{3709}}^1$

素因数の和:3821

約数の個数: 16

約数和(自身を含む): 33300960

約数和(自身を除く): 11929702

約数列:

[1, 2, 43, 67, 86, 134, 2881, 3709, 5762, 7418, 159487, 248503, 318974, 497006, 10685629, 21371258]

約数ペア:

[(1, 21371258), (2, 10685629), (43, 497006), (67, 318974), (86, 248503), (134, 159487), (2881, 7418), (3709, 5762)]