20719348

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 41849920

約数和(自身を除く): 21130572

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 67, 76, 134, 247, 268, 313, 494, 626, 871, 988, 1252, 1273, 1742, 2546, 3484, 4069, 5092, 5947, 8138, 11894, 16276, 16549, 20971, 23788, 33098, 41942, 66196, 77311, 83884, 154622, 272623, 309244, 398449, 545246, 796898, 1090492, 1593796, 5179837, 10359674, 20719348]

約数ペア:

[(1, 20719348), (2, 10359674), (4, 5179837), (13, 1593796), (19, 1090492), (26, 796898), (38, 545246), (52, 398449), (67, 309244), (76, 272623), (134, 154622), (247, 83884), (268, 77311), (313, 66196), (494, 41942), (626, 33098), (871, 23788), (988, 20971), (1252, 16549), (1273, 16276), (1742, 11894), (2546, 8138), (3484, 5947), (4069, 5092)]