21283803

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{2069}}^1$

素因数の和:2208

約数の個数: 20

約数和(自身を含む): 32060160

約数和(自身を除く): 10776357

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 2069, 3429, 6207, 10287, 18621, 55863, 167589, 262763, 788289, 2364867, 7094601, 21283803]

約数ペア:

[(1, 21283803), (3, 7094601), (9, 2364867), (27, 788289), (81, 262763), (127, 167589), (381, 55863), (1143, 18621), (2069, 10287), (3429, 6207)]