51516567

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{4051}}^1$

素因数の和:4220

約数の個数: 20

約数和(自身を含む): 77466136

約数和(自身を除く): 25949569

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 4051, 4239, 12153, 12717, 36459, 109377, 328131, 636007, 1908021, 5724063, 17172189, 51516567]

約数ペア:

[(1, 51516567), (3, 17172189), (9, 5724063), (27, 1908021), (81, 636007), (157, 328131), (471, 109377), (1413, 36459), (4051, 12717), (4239, 12153)]