21745128

素因数分解:

$2^3\times 3^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 56880000

約数和(自身を除く): 35134872

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 29, 58, 87, 116, 157, 174, 199, 232, 314, 348, 398, 471, 597, 628, 696, 796, 942, 1194, 1256, 1592, 1884, 2388, 3768, 4553, 4776, 5771, 9106, 11542, 13659, 17313, 18212, 23084, 27318, 31243, 34626, 36424, 46168, 54636, 62486, 69252, 93729, 109272, 124972, 138504, 187458, 249944, 374916, 749832, 906047, 1812094, 2718141, 3624188, 5436282, 7248376, 10872564, 21745128]

約数ペア:

[(1, 21745128), (2, 10872564), (3, 7248376), (4, 5436282), (6, 3624188), (8, 2718141), (12, 1812094), (24, 906047), (29, 749832), (58, 374916), (87, 249944), (116, 187458), (157, 138504), (174, 124972), (199, 109272), (232, 93729), (314, 69252), (348, 62486), (398, 54636), (471, 46168), (597, 36424), (628, 34626), (696, 31243), (796, 27318), (942, 23084), (1194, 18212), (1256, 17313), (1592, 13659), (1884, 11542), (2388, 9106), (3768, 5771), (4553, 4776)]