21000359611

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{499}}^1\times {\mathrm{4517}}^1$

素因数の和:5056

約数の個数: 32

約数和(自身を含む): 26457408000

約数和(自身を除く): 5457048389

約数列:

[1, 7, 11, 77, 121, 499, 847, 1331, 3493, 4517, 5489, 9317, 31619, 38423, 49687, 60379, 347809, 422653, 546557, 664169, 2253983, 3825899, 4649183, 6012127, 15777881, 24793813, 42084889, 173556691, 272731943, 1909123601, 3000051373, 21000359611]

約数ペア:

[(1, 21000359611), (7, 3000051373), (11, 1909123601), (77, 272731943), (121, 173556691), (499, 42084889), (847, 24793813), (1331, 15777881), (3493, 6012127), (4517, 4649183), (5489, 3825899), (9317, 2253983), (31619, 664169), (38423, 546557), (49687, 422653), (60379, 347809)]