18115839

素因数分解:

$3^3\times 7^2\times {\mathrm{13693}}^1$

素因数の和:13716

約数の個数: 24

約数和(自身を含む): 31222320

約数和(自身を除く): 13106481

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 13693, 41079, 95851, 123237, 287553, 369711, 670957, 862659, 2012871, 2587977, 6038613, 18115839]

約数ペア:

[(1, 18115839), (3, 6038613), (7, 2587977), (9, 2012871), (21, 862659), (27, 670957), (49, 369711), (63, 287553), (147, 123237), (189, 95851), (441, 41079), (1323, 13693)]