20945955

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82141}}^1$

素因数の和:82166

約数の個数: 16

約数和(自身を含む): 35485344

約数和(自身を除く): 14539389

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 82141, 246423, 410705, 1232115, 1396397, 4189191, 6981985, 20945955]

約数ペア:

[(1, 20945955), (3, 6981985), (5, 4189191), (15, 1396397), (17, 1232115), (51, 410705), (85, 246423), (255, 82141)]