18991935

素因数分解:

$3^3\times 5^1\times {\mathrm{140681}}^1$

素因数の和:140695

約数の個数: 16

約数和(自身を含む): 33763680

約数和(自身を除く): 14771745

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 140681, 422043, 703405, 1266129, 2110215, 3798387, 6330645, 18991935]

約数ペア:

[(1, 18991935), (3, 6330645), (5, 3798387), (9, 2110215), (15, 1266129), (27, 703405), (45, 422043), (135, 140681)]