20977242

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1063}}^1$

素因数の和:1115

約数の個数: 64

約数和(自身を含む): 51480576

約数和(自身を除く): 30503334

約数列:

[1, 2, 3, 6, 11, 13, 22, 23, 26, 33, 39, 46, 66, 69, 78, 138, 143, 253, 286, 299, 429, 506, 598, 759, 858, 897, 1063, 1518, 1794, 2126, 3189, 3289, 6378, 6578, 9867, 11693, 13819, 19734, 23386, 24449, 27638, 35079, 41457, 48898, 70158, 73347, 82914, 146694, 152009, 268939, 304018, 317837, 456027, 537878, 635674, 806817, 912054, 953511, 1613634, 1907022, 3496207, 6992414, 10488621, 20977242]

約数ペア:

[(1, 20977242), (2, 10488621), (3, 6992414), (6, 3496207), (11, 1907022), (13, 1613634), (22, 953511), (23, 912054), (26, 806817), (33, 635674), (39, 537878), (46, 456027), (66, 317837), (69, 304018), (78, 268939), (138, 152009), (143, 146694), (253, 82914), (286, 73347), (299, 70158), (429, 48898), (506, 41457), (598, 35079), (759, 27638), (858, 24449), (897, 23386), (1063, 19734), (1518, 13819), (1794, 11693), (2126, 9867), (3189, 6578), (3289, 6378)]