28517391

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{9631}}^1$

素因数の和:9691

約数の個数: 24

約数和(自身を含む): 48082944

約数和(自身を除く): 19565553

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 9631, 28893, 67417, 86679, 202251, 452657, 606753, 1357971, 3168599, 4073913, 9505797, 28517391]

約数ペア:

[(1, 28517391), (3, 9505797), (7, 4073913), (9, 3168599), (21, 1357971), (47, 606753), (63, 452657), (141, 202251), (329, 86679), (423, 67417), (987, 28893), (2961, 9631)]