20019357

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{227}}^1\times {\mathrm{239}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 29877120

約数和(自身を除く): 9857763

約数列:

[1, 3, 9, 41, 123, 227, 239, 369, 681, 717, 2043, 2151, 9307, 9799, 27921, 29397, 54253, 83763, 88191, 162759, 488277, 2224373, 6673119, 20019357]

約数ペア:

[(1, 20019357), (3, 6673119), (9, 2224373), (41, 488277), (123, 162759), (227, 88191), (239, 83763), (369, 54253), (681, 29397), (717, 27921), (2043, 9799), (2151, 9307)]