19878969

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{2381}}^1$

素因数の和:2429

約数の個数: 24

約数和(自身を含む): 30413376

約数和(自身を除く): 10534407

約数列:

[1, 3, 11, 23, 33, 69, 121, 253, 363, 759, 2381, 2783, 7143, 8349, 26191, 54763, 78573, 164289, 288101, 602393, 864303, 1807179, 6626323, 19878969]

約数ペア:

[(1, 19878969), (3, 6626323), (11, 1807179), (23, 864303), (33, 602393), (69, 288101), (121, 164289), (253, 78573), (363, 54763), (759, 26191), (2381, 8349), (2783, 7143)]