21740456

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{63199}}^1$

素因数の和:63248

約数の個数: 16

約数和(自身を含む): 41712000

約数和(自身を除く): 19971544

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 63199, 126398, 252796, 505592, 2717557, 5435114, 10870228, 21740456]

約数ペア:

[(1, 21740456), (2, 10870228), (4, 5435114), (8, 2717557), (43, 505592), (86, 252796), (172, 126398), (344, 63199)]