20759295

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81409}}^1$

素因数の和:81434

約数の個数: 16

約数和(自身を含む): 35169120

約数和(自身を除く): 14409825

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 81409, 244227, 407045, 1221135, 1383953, 4151859, 6919765, 20759295]

約数ペア:

[(1, 20759295), (3, 6919765), (5, 4151859), (15, 1383953), (17, 1221135), (51, 407045), (85, 244227), (255, 81409)]