20018435

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5477}}^1$

素因数の和:5542

約数の個数: 16

約数和(自身を含む): 26031456

約数和(自身を除く): 6013021

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 5477, 27385, 93109, 235511, 465545, 1177555, 4003687, 20018435]

約数ペア:

[(1, 20018435), (5, 4003687), (17, 1177555), (43, 465545), (85, 235511), (215, 93109), (731, 27385), (3655, 5477)]