28458171

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1373}}^1$

素因数の和:1440

約数の個数: 36

約数和(自身を含む): 48870432

約数和(自身を除く): 20412261

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 329, 423, 441, 987, 1373, 2303, 2961, 4119, 6909, 9611, 12357, 20727, 28833, 64531, 67277, 86499, 193593, 201831, 451717, 580779, 605493, 1355151, 3162019, 4065453, 9486057, 28458171]

約数ペア:

[(1, 28458171), (3, 9486057), (7, 4065453), (9, 3162019), (21, 1355151), (47, 605493), (49, 580779), (63, 451717), (141, 201831), (147, 193593), (329, 86499), (423, 67277), (441, 64531), (987, 28833), (1373, 20727), (2303, 12357), (2961, 9611), (4119, 6909)]