81643877

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{6661}}^1$

素因数の和:6788

約数の個数: 16

約数和(自身を含む): 99770112

約数和(自身を除く): 18126235

約数列:

[1, 7, 17, 103, 119, 721, 1751, 6661, 12257, 46627, 113237, 686083, 792659, 4802581, 11663411, 81643877]

約数ペア:

[(1, 81643877), (7, 11663411), (17, 4802581), (103, 792659), (119, 686083), (721, 113237), (1751, 46627), (6661, 12257)]