39815721

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 65894400

約数和(自身を除く): 26078679

約数列:

[1, 3, 9, 11, 33, 43, 47, 99, 129, 141, 199, 387, 423, 473, 517, 597, 1419, 1551, 1791, 2021, 2189, 4257, 4653, 6063, 6567, 8557, 9353, 18189, 19701, 22231, 25671, 28059, 66693, 77013, 84177, 94127, 102883, 200079, 282381, 308649, 402179, 847143, 925947, 1206537, 3619611, 4423969, 13271907, 39815721]

約数ペア:

[(1, 39815721), (3, 13271907), (9, 4423969), (11, 3619611), (33, 1206537), (43, 925947), (47, 847143), (99, 402179), (129, 308649), (141, 282381), (199, 200079), (387, 102883), (423, 94127), (473, 84177), (517, 77013), (597, 66693), (1419, 28059), (1551, 25671), (1791, 22231), (2021, 19701), (2189, 18189), (4257, 9353), (4653, 8557), (6063, 6567)]