87039981

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{20023}}^1$

素因数の和:20062

約数の個数: 32

約数和(自身を含む): 153784320

約数和(自身を除く): 66744339

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 20023, 60069, 140161, 180207, 420483, 460529, 540621, 1261449, 1381587, 3223703, 3784347, 4144761, 9671109, 12434283, 29013327, 87039981]

約数ペア:

[(1, 87039981), (3, 29013327), (7, 12434283), (9, 9671109), (21, 4144761), (23, 3784347), (27, 3223703), (63, 1381587), (69, 1261449), (161, 540621), (189, 460529), (207, 420483), (483, 180207), (621, 140161), (1449, 60069), (4347, 20023)]