21257598

素因数分解:

$2^1\times 3^1\times {\mathrm{41}}^1\times {\mathrm{86413}}^1$

素因数の和:86459

約数の個数: 16

約数和(自身を含む): 43552656

約数和(自身を除く): 22295058

約数列:

[1, 2, 3, 6, 41, 82, 123, 246, 86413, 172826, 259239, 518478, 3542933, 7085866, 10628799, 21257598]

約数ペア:

[(1, 21257598), (2, 10628799), (3, 7085866), (6, 3542933), (41, 518478), (82, 259239), (123, 172826), (246, 86413)]