21815822

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67751}}^1$

素因数の和:67783

約数の個数: 16

約数和(自身を含む): 39025152

約数和(自身を除く): 17209330

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 67751, 135502, 474257, 948514, 1558273, 3116546, 10907911, 21815822]

約数ペア:

[(1, 21815822), (2, 10907911), (7, 3116546), (14, 1558273), (23, 948514), (46, 474257), (161, 135502), (322, 67751)]