20953605

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82171}}^1$

素因数の和:82196

約数の個数: 16

約数和(自身を含む): 35498304

約数和(自身を除く): 14544699

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 82171, 246513, 410855, 1232565, 1396907, 4190721, 6984535, 20953605]

約数ペア:

[(1, 20953605), (3, 6984535), (5, 4190721), (15, 1396907), (17, 1232565), (51, 410855), (85, 246513), (255, 82171)]