72331209

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{27809}}^1$

素因数の和:27849

約数の個数: 18

約数和(自身を含む): 110989710

約数和(自身を除く): 38658501

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 27809, 83427, 250281, 472753, 1418259, 4254777, 8036801, 24110403, 72331209]

約数ペア:

[(1, 72331209), (3, 24110403), (9, 8036801), (17, 4254777), (51, 1418259), (153, 472753), (289, 250281), (867, 83427), (2601, 27809)]