21126742

素因数分解:

$2^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:162

約数の個数: 64

約数和(自身を含む): 41932800

約数和(自身を除く): 20806058

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 49, 91, 98, 103, 161, 182, 206, 299, 322, 343, 598, 637, 686, 721, 1127, 1274, 1339, 1442, 2093, 2254, 2369, 2678, 4186, 4459, 4738, 5047, 7889, 8918, 9373, 10094, 14651, 15778, 16583, 18746, 29302, 30797, 33166, 35329, 61594, 65611, 70658, 102557, 116081, 131222, 205114, 215579, 232162, 431158, 459277, 812567, 918554, 1509053, 1625134, 3018106, 10563371, 21126742]

約数ペア:

[(1, 21126742), (2, 10563371), (7, 3018106), (13, 1625134), (14, 1509053), (23, 918554), (26, 812567), (46, 459277), (49, 431158), (91, 232162), (98, 215579), (103, 205114), (161, 131222), (182, 116081), (206, 102557), (299, 70658), (322, 65611), (343, 61594), (598, 35329), (637, 33166), (686, 30797), (721, 29302), (1127, 18746), (1274, 16583), (1339, 15778), (1442, 14651), (2093, 10094), (2254, 9373), (2369, 8918), (2678, 7889), (4186, 5047), (4459, 4738)]