8991243

素因数分解:

$3^5\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:405

約数の個数: 24

約数和(自身を含む): 13610688

約数和(自身を除く): 4619445

約数列:

[1, 3, 9, 27, 81, 163, 227, 243, 489, 681, 1467, 2043, 4401, 6129, 13203, 18387, 37001, 39609, 55161, 111003, 333009, 999027, 2997081, 8991243]

約数ペア:

[(1, 8991243), (3, 2997081), (9, 999027), (27, 333009), (81, 111003), (163, 55161), (227, 39609), (243, 37001), (489, 18387), (681, 13203), (1467, 6129), (2043, 4401)]