28739139

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2161}}^1$

素因数の和:2219

約数の個数: 32

約数和(自身を含む): 46491648

約数和(自身を除く): 17752509

約数列:

[1, 3, 11, 13, 31, 33, 39, 93, 143, 341, 403, 429, 1023, 1209, 2161, 4433, 6483, 13299, 23771, 28093, 66991, 71313, 84279, 200973, 309023, 736901, 870883, 927069, 2210703, 2612649, 9579713, 28739139]

約数ペア:

[(1, 28739139), (3, 9579713), (11, 2612649), (13, 2210703), (31, 927069), (33, 870883), (39, 736901), (93, 309023), (143, 200973), (341, 84279), (403, 71313), (429, 66991), (1023, 28093), (1209, 23771), (2161, 13299), (4433, 6483)]