21807480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{181729}}^1$

素因数の和:181743

約数の個数: 32

約数和(自身を含む): 65422800

約数和(自身を除く): 43615320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 181729, 363458, 545187, 726916, 908645, 1090374, 1453832, 1817290, 2180748, 2725935, 3634580, 4361496, 5451870, 7269160, 10903740, 21807480]

約数ペア:

[(1, 21807480), (2, 10903740), (3, 7269160), (4, 5451870), (5, 4361496), (6, 3634580), (8, 2725935), (10, 2180748), (12, 1817290), (15, 1453832), (20, 1090374), (24, 908645), (30, 726916), (40, 545187), (60, 363458), (120, 181729)]