18804961

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1\times {\mathrm{431}}^1$

素因数の和:732

約数の個数: 16

約数和(自身を含む): 22560768

約数和(自身を除く): 3755807

約数列:

[1, 7, 23, 161, 271, 431, 1897, 3017, 6233, 9913, 43631, 69391, 116801, 817607, 2686423, 18804961]

約数ペア:

[(1, 18804961), (7, 2686423), (23, 817607), (161, 116801), (271, 69391), (431, 43631), (1897, 9913), (3017, 6233)]