18219735

素因数分解:

$3^4\times 5^1\times {\mathrm{44987}}^1$

素因数の和:45004

約数の個数: 20

約数和(自身を含む): 32661288

約数和(自身を除く): 14441553

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 44987, 134961, 224935, 404883, 674805, 1214649, 2024415, 3643947, 6073245, 18219735]

約数ペア:

[(1, 18219735), (3, 6073245), (5, 3643947), (9, 2024415), (15, 1214649), (27, 674805), (45, 404883), (81, 224935), (135, 134961), (405, 44987)]