28321761

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1033}}^1$

素因数の和:1105

約数の個数: 32

約数和(自身を含む): 44007040

約数和(自身を除く): 15685279

約数列:

[1, 3, 13, 19, 37, 39, 57, 111, 247, 481, 703, 741, 1033, 1443, 2109, 3099, 9139, 13429, 19627, 27417, 38221, 40287, 58881, 114663, 255151, 496873, 726199, 765453, 1490619, 2178597, 9440587, 28321761]

約数ペア:

[(1, 28321761), (3, 9440587), (13, 2178597), (19, 1490619), (37, 765453), (39, 726199), (57, 496873), (111, 255151), (247, 114663), (481, 58881), (703, 40287), (741, 38221), (1033, 27417), (1443, 19627), (2109, 13429), (3099, 9139)]