21529886

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{66863}}^1$

素因数の和:66895

約数の個数: 16

約数和(自身を含む): 38513664

約数和(自身を除く): 16983778

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 66863, 133726, 468041, 936082, 1537849, 3075698, 10764943, 21529886]

約数ペア:

[(1, 21529886), (2, 10764943), (7, 3075698), (14, 1537849), (23, 936082), (46, 468041), (161, 133726), (322, 66863)]