261011088477

素因数分解:

$3^4\times {\mathrm{2657}}^1\times {\mathrm{1212781}}^1$

素因数の和:1215450

約数の個数: 20

約数和(自身を含む): 390052521276

約数和(自身を除く): 129041432799

約数列:

[1, 3, 9, 27, 81, 2657, 7971, 23913, 71739, 215217, 1212781, 3638343, 10915029, 32745087, 98235261, 3222359117, 9667077351, 29001232053, 87003696159, 261011088477]

約数ペア:

[(1, 261011088477), (3, 87003696159), (9, 29001232053), (27, 9667077351), (81, 3222359117), (2657, 98235261), (7971, 32745087), (23913, 10915029), (71739, 3638343), (215217, 1212781)]