21560409

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1451}}^1$

素因数の和:1597

約数の個数: 24

約数和(自身を含む): 33825792

約数和(自身を除く): 12265383

約数列:

[1, 3, 9, 13, 39, 117, 127, 381, 1143, 1451, 1651, 4353, 4953, 13059, 14859, 18863, 56589, 169767, 184277, 552831, 1658493, 2395601, 7186803, 21560409]

約数ペア:

[(1, 21560409), (3, 7186803), (9, 2395601), (13, 1658493), (39, 552831), (117, 184277), (127, 169767), (381, 56589), (1143, 18863), (1451, 14859), (1651, 13059), (4353, 4953)]