28708251

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{66919}}^1$

素因数の和:66946

約数の個数: 16

約数和(自身を含む): 44970240

約数和(自身を除く): 16261989

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 66919, 200757, 736109, 869947, 2208327, 2609841, 9569417, 28708251]

約数ペア:

[(1, 28708251), (3, 9569417), (11, 2609841), (13, 2208327), (33, 869947), (39, 736109), (143, 200757), (429, 66919)]