28202409

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 41656680

約数和(自身を除く): 13454271

約数列:

[1, 3, 9, 89, 137, 257, 267, 411, 771, 801, 1233, 2313, 12193, 22873, 35209, 36579, 68619, 105627, 109737, 205857, 316881, 3133601, 9400803, 28202409]

約数ペア:

[(1, 28202409), (3, 9400803), (9, 3133601), (89, 316881), (137, 205857), (257, 109737), (267, 105627), (411, 68619), (771, 36579), (801, 35209), (1233, 22873), (2313, 12193)]