20925945

素因数分解:

$3^6\times 5^1\times {\mathrm{5741}}^1$

素因数の和:5764

約数の個数: 28

約数和(自身を含む): 37656036

約数和(自身を除く): 16730091

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5741, 17223, 28705, 51669, 86115, 155007, 258345, 465021, 775035, 1395063, 2325105, 4185189, 6975315, 20925945]

約数ペア:

[(1, 20925945), (3, 6975315), (5, 4185189), (9, 2325105), (15, 1395063), (27, 775035), (45, 465021), (81, 258345), (135, 155007), (243, 86115), (405, 51669), (729, 28705), (1215, 17223), (3645, 5741)]