724157217

素因数分解:

$3^2\times 7^1\times {\mathrm{1721}}^1\times {\mathrm{6679}}^1$

素因数の和:8413

約数の個数: 24

約数和(自身を含む): 1196307840

約数和(自身を除く): 472150623

約数列:

[1, 3, 7, 9, 21, 63, 1721, 5163, 6679, 12047, 15489, 20037, 36141, 46753, 60111, 108423, 140259, 420777, 11494559, 34483677, 80461913, 103451031, 241385739, 724157217]

約数ペア:

[(1, 724157217), (3, 241385739), (7, 103451031), (9, 80461913), (21, 34483677), (63, 11494559), (1721, 420777), (5163, 140259), (6679, 108423), (12047, 60111), (15489, 46753), (20037, 36141)]