21657122

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{10949}}^1$

素因数の和:11017

約数の個数: 16

約数和(自身を含む): 34689600

約数和(自身を除く): 13032478

約数列:

[1, 2, 23, 43, 46, 86, 989, 1978, 10949, 21898, 251827, 470807, 503654, 941614, 10828561, 21657122]

約数ペア:

[(1, 21657122), (2, 10828561), (23, 941614), (43, 503654), (46, 470807), (86, 251827), (989, 21898), (1978, 10949)]