21786254399

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{503}}^1\times {\mathrm{4621}}^1$

素因数の和:5247

約数の個数: 32

約数和(自身を含む): 27133876224

約数和(自身を除く): 5347621825

約数列:

[1, 7, 13, 91, 103, 503, 721, 1339, 3521, 4621, 6539, 9373, 32347, 45773, 51809, 60073, 362663, 420511, 475963, 673517, 2324363, 3331741, 4714619, 6187519, 16270541, 30216719, 43312633, 211517033, 239409389, 1675865723, 3112322057, 21786254399]

約数ペア:

[(1, 21786254399), (7, 3112322057), (13, 1675865723), (91, 239409389), (103, 211517033), (503, 43312633), (721, 30216719), (1339, 16270541), (3521, 6187519), (4621, 4714619), (6539, 3331741), (9373, 2324363), (32347, 673517), (45773, 475963), (51809, 420511), (60073, 362663)]