131021639

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{116257}}^1$

素因数の和:116294

約数の個数: 12

約数和(自身を含む): 159040944

約数和(自身を除く): 28019305

約数列:

[1, 7, 23, 49, 161, 1127, 116257, 813799, 2673911, 5696593, 18717377, 131021639]

約数ペア:

[(1, 131021639), (7, 18717377), (23, 5696593), (49, 2673911), (161, 813799), (1127, 116257)]