20744542

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{857}}^1$

素因数の和:905

約数の個数: 48

約数和(自身を含む): 41081040

約数和(自身を除く): 20336498

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 49, 91, 98, 133, 182, 247, 266, 494, 637, 857, 931, 1274, 1714, 1729, 1862, 3458, 5999, 11141, 11998, 12103, 16283, 22282, 24206, 32566, 41993, 77987, 83986, 113981, 155974, 211679, 227962, 423358, 545909, 797867, 1091818, 1481753, 1595734, 2963506, 10372271, 20744542]

約数ペア:

[(1, 20744542), (2, 10372271), (7, 2963506), (13, 1595734), (14, 1481753), (19, 1091818), (26, 797867), (38, 545909), (49, 423358), (91, 227962), (98, 211679), (133, 155974), (182, 113981), (247, 83986), (266, 77987), (494, 41993), (637, 32566), (857, 24206), (931, 22282), (1274, 16283), (1714, 12103), (1729, 11998), (1862, 11141), (3458, 5999)]