28396521

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{14813}}^1$

素因数の和:14893

約数の個数: 16

約数和(自身を含む): 42664320

約数和(自身を除く): 14267799

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 14813, 44439, 133317, 399951, 1051723, 3155169, 9465507, 28396521]

約数ペア:

[(1, 28396521), (3, 9465507), (9, 3155169), (27, 1051723), (71, 399951), (213, 133317), (639, 44439), (1917, 14813)]