28931721

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{105977}}^1$

素因数の和:106000

約数の個数: 16

約数和(自身を含む): 47478144

約数和(自身を除く): 18546423

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 105977, 317931, 741839, 1377701, 2225517, 4133103, 9643907, 28931721]

約数ペア:

[(1, 28931721), (3, 9643907), (7, 4133103), (13, 2225517), (21, 1377701), (39, 741839), (91, 317931), (273, 105977)]