20813415

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{198223}}^1$

素因数の和:198238

約数の個数: 16

約数和(自身を含む): 38059008

約数和(自身を除く): 17245593

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 198223, 594669, 991115, 1387561, 2973345, 4162683, 6937805, 20813415]

約数ペア:

[(1, 20813415), (3, 6937805), (5, 4162683), (7, 2973345), (15, 1387561), (21, 991115), (35, 594669), (105, 198223)]