20255313

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 31159296

約数和(自身を除く): 10903983

約数列:

[1, 3, 13, 17, 39, 51, 137, 221, 223, 411, 663, 669, 1781, 2329, 2899, 3791, 5343, 6987, 8697, 11373, 30277, 30551, 49283, 90831, 91653, 147849, 397163, 519367, 1191489, 1558101, 6751771, 20255313]

約数ペア:

[(1, 20255313), (3, 6751771), (13, 1558101), (17, 1191489), (39, 519367), (51, 397163), (137, 147849), (221, 91653), (223, 90831), (411, 49283), (663, 30551), (669, 30277), (1781, 11373), (2329, 8697), (2899, 6987), (3791, 5343)]