20998095

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{13591}}^1$

素因数の和:13702

約数の個数: 16

約数和(自身を含む): 33925632

約数和(自身を除く): 12927537

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 13591, 40773, 67955, 203865, 1399873, 4199619, 6999365, 20998095]

約数ペア:

[(1, 20998095), (3, 6999365), (5, 4199619), (15, 1399873), (103, 203865), (309, 67955), (515, 40773), (1545, 13591)]