1261897021

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{509}}^1\times {\mathrm{2927}}^1$

素因数の和:3465

約数の個数: 24

約数和(自身を含む): 1588849920

約数和(自身を除く): 326952899

約数列:

[1, 7, 11, 77, 121, 509, 847, 2927, 3563, 5599, 20489, 32197, 39193, 61589, 225379, 354167, 431123, 1489843, 2479169, 10428901, 16388273, 114717911, 180271003, 1261897021]

約数ペア:

[(1, 1261897021), (7, 180271003), (11, 114717911), (77, 16388273), (121, 10428901), (509, 2479169), (847, 1489843), (2927, 431123), (3563, 354167), (5599, 225379), (20489, 61589), (32197, 39193)]