18436815

素因数分解:

$3^4\times 5^1\times {\mathrm{45523}}^1$

素因数の和:45540

約数の個数: 20

約数和(自身を含む): 33050424

約数和(自身を除く): 14613609

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 45523, 136569, 227615, 409707, 682845, 1229121, 2048535, 3687363, 6145605, 18436815]

約数ペア:

[(1, 18436815), (3, 6145605), (5, 3687363), (9, 2048535), (15, 1229121), (27, 682845), (45, 409707), (81, 227615), (135, 136569), (405, 45523)]