28910817

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2657}}^1$

素因数の和:2710

約数の個数: 32

約数和(自身を含む): 47631360

約数和(自身を除く): 18720543

約数列:

[1, 3, 9, 13, 27, 31, 39, 93, 117, 279, 351, 403, 837, 1209, 2657, 3627, 7971, 10881, 23913, 34541, 71739, 82367, 103623, 247101, 310869, 741303, 932607, 1070771, 2223909, 3212313, 9636939, 28910817]

約数ペア:

[(1, 28910817), (3, 9636939), (9, 3212313), (13, 2223909), (27, 1070771), (31, 932607), (39, 741303), (93, 310869), (117, 247101), (279, 103623), (351, 82367), (403, 71739), (837, 34541), (1209, 23913), (2657, 10881), (3627, 7971)]