51505713

素因数分解:

$3^4\times 7^2\times {\mathrm{19}}^1\times {\mathrm{683}}^1$

素因数の和:728

約数の個数: 60

約数和(自身を含む): 94350960

約数和(自身を除く): 42845247

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 81, 133, 147, 171, 189, 399, 441, 513, 567, 683, 931, 1197, 1323, 1539, 2049, 2793, 3591, 3969, 4781, 6147, 8379, 10773, 12977, 14343, 18441, 25137, 33467, 38931, 43029, 55323, 75411, 90839, 100401, 116793, 129087, 272517, 301203, 350379, 387261, 635873, 817551, 903609, 1051137, 1907619, 2452653, 2710827, 5722857, 7357959, 17168571, 51505713]

約数ペア:

[(1, 51505713), (3, 17168571), (7, 7357959), (9, 5722857), (19, 2710827), (21, 2452653), (27, 1907619), (49, 1051137), (57, 903609), (63, 817551), (81, 635873), (133, 387261), (147, 350379), (171, 301203), (189, 272517), (399, 129087), (441, 116793), (513, 100401), (567, 90839), (683, 75411), (931, 55323), (1197, 43029), (1323, 38931), (1539, 33467), (2049, 25137), (2793, 18441), (3591, 14343), (3969, 12977), (4781, 10773), (6147, 8379)]