20473899

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{2557}}^1$

素因数の和:2734

約数の個数: 16

約数和(自身を含む): 29099808

約数和(自身を除く): 8625909

約数列:

[1, 3, 17, 51, 157, 471, 2557, 2669, 7671, 8007, 43469, 130407, 401449, 1204347, 6824633, 20473899]

約数ペア:

[(1, 20473899), (3, 6824633), (17, 1204347), (51, 401449), (157, 130407), (471, 43469), (2557, 8007), (2669, 7671)]