1397457

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:229

約数の個数: 24

約数和(自身を含む): 2169024

約数和(自身を除く): 771567

約数列:

[1, 3, 9, 23, 43, 69, 129, 157, 207, 387, 471, 989, 1413, 2967, 3611, 6751, 8901, 10833, 20253, 32499, 60759, 155273, 465819, 1397457]

約数ペア:

[(1, 1397457), (3, 465819), (9, 155273), (23, 60759), (43, 32499), (69, 20253), (129, 10833), (157, 8901), (207, 6751), (387, 3611), (471, 2967), (989, 1413)]