20920155

素因数分解:

$3^1\times 5^1\times {\mathrm{1051}}^1\times {\mathrm{1327}}^1$

素因数の和:2386

約数の個数: 16

約数和(自身を含む): 33529344

約数和(自身を除く): 12609189

約数列:

[1, 3, 5, 15, 1051, 1327, 3153, 3981, 5255, 6635, 15765, 19905, 1394677, 4184031, 6973385, 20920155]

約数ペア:

[(1, 20920155), (3, 6973385), (5, 4184031), (15, 1394677), (1051, 19905), (1327, 15765), (3153, 6635), (3981, 5255)]