20406735

素因数分解:

$3^4\times 5^1\times {\mathrm{50387}}^1$

素因数の和:50404

約数の個数: 20

約数和(自身を含む): 36581688

約数和(自身を除く): 16174953

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 50387, 151161, 251935, 453483, 755805, 1360449, 2267415, 4081347, 6802245, 20406735]

約数ペア:

[(1, 20406735), (3, 6802245), (5, 4081347), (9, 2267415), (15, 1360449), (27, 755805), (45, 453483), (81, 251935), (135, 151161), (405, 50387)]