258291261

素因数分解:

$3^7\times {\mathrm{89}}^1\times {\mathrm{1327}}^1$

素因数の和:1437

約数の個数: 32

約数和(自身を含む): 392025600

約数和(自身を除く): 133734339

約数列:

[1, 3, 9, 27, 81, 89, 243, 267, 729, 801, 1327, 2187, 2403, 3981, 7209, 11943, 21627, 35829, 64881, 107487, 118103, 194643, 322461, 354309, 967383, 1062927, 2902149, 3188781, 9566343, 28699029, 86097087, 258291261]

約数ペア:

[(1, 258291261), (3, 86097087), (9, 28699029), (27, 9566343), (81, 3188781), (89, 2902149), (243, 1062927), (267, 967383), (729, 354309), (801, 322461), (1327, 194643), (2187, 118103), (2403, 107487), (3981, 64881), (7209, 35829), (11943, 21627)]