21109354

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{65557}}^1$

素因数の和:65589

約数の個数: 16

約数和(自身を含む): 37761408

約数和(自身を除く): 16652054

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 65557, 131114, 458899, 917798, 1507811, 3015622, 10554677, 21109354]

約数ペア:

[(1, 21109354), (2, 10554677), (7, 3015622), (14, 1507811), (23, 917798), (46, 458899), (161, 131114), (322, 65557)]