20778285

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{125929}}^1$

素因数の和:125948

約数の個数: 16

約数和(自身を含む): 36267840

約数和(自身を除く): 15489555

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 125929, 377787, 629645, 1385219, 1888935, 4155657, 6926095, 20778285]

約数ペア:

[(1, 20778285), (3, 6926095), (5, 4155657), (11, 1888935), (15, 1385219), (33, 629645), (55, 377787), (165, 125929)]