21132085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 29272320

約数和(自身を除く): 8140235

約数列:

[1, 5, 13, 19, 65, 71, 95, 241, 247, 355, 923, 1205, 1235, 1349, 3133, 4579, 4615, 6745, 15665, 17111, 17537, 22895, 59527, 85555, 87685, 222443, 297635, 325109, 1112215, 1625545, 4226417, 21132085]

約数ペア:

[(1, 21132085), (5, 4226417), (13, 1625545), (19, 1112215), (65, 325109), (71, 297635), (95, 222443), (241, 87685), (247, 85555), (355, 59527), (923, 22895), (1205, 17537), (1235, 17111), (1349, 15665), (3133, 6745), (4579, 4615)]