20778945

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{125933}}^1$

素因数の和:125952

約数の個数: 16

約数和(自身を含む): 36268992

約数和(自身を除く): 15490047

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 125933, 377799, 629665, 1385263, 1888995, 4155789, 6926315, 20778945]

約数ペア:

[(1, 20778945), (3, 6926315), (5, 4155789), (11, 1888995), (15, 1385263), (33, 629665), (55, 377799), (165, 125933)]