28722837

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:162

約数の個数: 64

約数和(自身を含む): 48771072

約数和(自身を除く): 20048235

約数列:

[1, 3, 11, 13, 23, 33, 39, 41, 69, 71, 123, 143, 213, 253, 299, 429, 451, 533, 759, 781, 897, 923, 943, 1353, 1599, 1633, 2343, 2769, 2829, 2911, 3289, 4899, 5863, 8733, 9867, 10153, 10373, 12259, 17589, 17963, 21229, 30459, 31119, 32021, 36777, 37843, 53889, 63687, 66953, 96063, 113529, 134849, 200859, 233519, 404547, 416273, 700557, 736483, 870389, 1248819, 2209449, 2611167, 9574279, 28722837]

約数ペア:

[(1, 28722837), (3, 9574279), (11, 2611167), (13, 2209449), (23, 1248819), (33, 870389), (39, 736483), (41, 700557), (69, 416273), (71, 404547), (123, 233519), (143, 200859), (213, 134849), (253, 113529), (299, 96063), (429, 66953), (451, 63687), (533, 53889), (759, 37843), (781, 36777), (897, 32021), (923, 31119), (943, 30459), (1353, 21229), (1599, 17963), (1633, 17589), (2343, 12259), (2769, 10373), (2829, 10153), (2911, 9867), (3289, 8733), (4899, 5863)]