72738729

素因数分解:

$3^4\times 7^1\times {\mathrm{128287}}^1$

素因数の和:128306

約数の個数: 20

約数和(自身を含む): 124182784

約数和(自身を除く): 51444055

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 128287, 384861, 898009, 1154583, 2694027, 3463749, 8082081, 10391247, 24246243, 72738729]

約数ペア:

[(1, 72738729), (3, 24246243), (7, 10391247), (9, 8082081), (21, 3463749), (27, 2694027), (63, 1154583), (81, 898009), (189, 384861), (567, 128287)]