81520587

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{24547}}^1$

素因数の和:24600

約数の個数: 20

約数和(自身を含む): 124752936

約数和(自身を除く): 43232349

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 24547, 73641, 220923, 662769, 1006427, 1988307, 3019281, 9057843, 27173529, 81520587]

約数ペア:

[(1, 81520587), (3, 27173529), (9, 9057843), (27, 3019281), (41, 1988307), (81, 1006427), (123, 662769), (369, 220923), (1107, 73641), (3321, 24547)]