21138334

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{65647}}^1$

素因数の和:65679

約数の個数: 16

約数和(自身を含む): 37813248

約数和(自身を除く): 16674914

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 65647, 131294, 459529, 919058, 1509881, 3019762, 10569167, 21138334]

約数ペア:

[(1, 21138334), (2, 10569167), (7, 3019762), (14, 1509881), (23, 919058), (46, 459529), (161, 131294), (322, 65647)]