21000638918

素因数分解:

$2^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{178939}}^1$

素因数の和:179132

約数の個数: 32

約数和(自身を含む): 36795790080

約数和(自身を除く): 15795151162

約数列:

[1, 2, 7, 14, 83, 101, 166, 202, 581, 707, 1162, 1414, 8383, 16766, 58681, 117362, 178939, 357878, 1252573, 2505146, 14851937, 18072839, 29703874, 36145678, 103963559, 126509873, 207927118, 253019746, 1500045637, 3000091274, 10500319459, 21000638918]

約数ペア:

[(1, 21000638918), (2, 10500319459), (7, 3000091274), (14, 1500045637), (83, 253019746), (101, 207927118), (166, 126509873), (202, 103963559), (581, 36145678), (707, 29703874), (1162, 18072839), (1414, 14851937), (8383, 2505146), (16766, 1252573), (58681, 357878), (117362, 178939)]