28291587

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 42301440

約数和(自身を除く): 14009853

約数列:

[1, 3, 17, 23, 51, 69, 89, 267, 271, 391, 813, 1173, 1513, 2047, 4539, 4607, 6141, 6233, 13821, 18699, 24119, 34799, 72357, 104397, 105961, 317883, 410023, 554737, 1230069, 1664211, 9430529, 28291587]

約数ペア:

[(1, 28291587), (3, 9430529), (17, 1664211), (23, 1230069), (51, 554737), (69, 410023), (89, 317883), (267, 105961), (271, 104397), (391, 72357), (813, 34799), (1173, 24119), (1513, 18699), (2047, 13821), (4539, 6233), (4607, 6141)]