20529945

素因数分解:

$3^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{907}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 35695296

約数和(自身を除く): 15165351

約数列:

[1, 3, 5, 9, 15, 45, 503, 907, 1509, 2515, 2721, 4527, 4535, 7545, 8163, 13605, 22635, 40815, 456221, 1368663, 2281105, 4105989, 6843315, 20529945]

約数ペア:

[(1, 20529945), (3, 6843315), (5, 4105989), (9, 2281105), (15, 1368663), (45, 456221), (503, 40815), (907, 22635), (1509, 13605), (2515, 8163), (2721, 7545), (4527, 4535)]