28812147

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{15077}}^1$

素因数の和:15107

約数の個数: 24

約数和(自身を含む): 48128976

約数和(自身を除く): 19316829

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 15077, 45231, 105539, 196001, 316617, 588003, 738773, 1372007, 2216319, 4116021, 9604049, 28812147]

約数ペア:

[(1, 28812147), (3, 9604049), (7, 4116021), (13, 2216319), (21, 1372007), (39, 738773), (49, 588003), (91, 316617), (147, 196001), (273, 105539), (637, 45231), (1911, 15077)]