21305866

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:346

約数の個数: 32

約数和(自身を含む): 35094528

約数和(自身を除く): 13788662

約数列:

[1, 2, 23, 31, 46, 62, 67, 134, 223, 446, 713, 1426, 1541, 2077, 3082, 4154, 5129, 6913, 10258, 13826, 14941, 29882, 47771, 95542, 158999, 317998, 343643, 463171, 687286, 926342, 10652933, 21305866]

約数ペア:

[(1, 21305866), (2, 10652933), (23, 926342), (31, 687286), (46, 463171), (62, 343643), (67, 317998), (134, 158999), (223, 95542), (446, 47771), (713, 29882), (1426, 14941), (1541, 13826), (2077, 10258), (3082, 6913), (4154, 5129)]