19664397

素因数分解:

$3^3\times {\mathrm{101}}^1\times {\mathrm{7211}}^1$

素因数の和:7321

約数の個数: 16

約数和(自身を含む): 29424960

約数和(自身を除く): 9760563

約数列:

[1, 3, 9, 27, 101, 303, 909, 2727, 7211, 21633, 64899, 194697, 728311, 2184933, 6554799, 19664397]

約数ペア:

[(1, 19664397), (3, 6554799), (9, 2184933), (27, 728311), (101, 194697), (303, 64899), (909, 21633), (2727, 7211)]