20099865

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78823}}^1$

素因数の和:78848

約数の個数: 16

約数和(自身を含む): 34051968

約数和(自身を除く): 13952103

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 78823, 236469, 394115, 1182345, 1339991, 4019973, 6699955, 20099865]

約数ペア:

[(1, 20099865), (3, 6699955), (5, 4019973), (15, 1339991), (17, 1182345), (51, 394115), (85, 236469), (255, 78823)]