28112877

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 47244288

約数和(自身を除く): 19131411

約数列:

[1, 3, 9, 13, 23, 31, 39, 69, 93, 117, 207, 279, 299, 337, 403, 713, 897, 1011, 1209, 2139, 2691, 3033, 3627, 4381, 6417, 7751, 9269, 10447, 13143, 23253, 27807, 31341, 39429, 69759, 83421, 94023, 100763, 135811, 240281, 302289, 407433, 720843, 906867, 1222299, 2162529, 3123653, 9370959, 28112877]

約数ペア:

[(1, 28112877), (3, 9370959), (9, 3123653), (13, 2162529), (23, 1222299), (31, 906867), (39, 720843), (69, 407433), (93, 302289), (117, 240281), (207, 135811), (279, 100763), (299, 94023), (337, 83421), (403, 69759), (713, 39429), (897, 31341), (1011, 27807), (1209, 23253), (2139, 13143), (2691, 10447), (3033, 9269), (3627, 7751), (4381, 6417)]