20386315

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{373}}^1\times {\mathrm{643}}^1$

素因数の和:1038

約数の個数: 16

約数和(自身を含む): 26012448

約数和(自身を除く): 5626133

約数列:

[1, 5, 17, 85, 373, 643, 1865, 3215, 6341, 10931, 31705, 54655, 239839, 1199195, 4077263, 20386315]

約数ペア:

[(1, 20386315), (5, 4077263), (17, 1199195), (85, 239839), (373, 54655), (643, 31705), (1865, 10931), (3215, 6341)]