21464548

素因数分解:

$2^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1129}}^1$

素因数の和:1244

約数の個数: 36

約数和(自身を含む): 44185260

約数和(自身を除く): 22720712

約数列:

[1, 2, 4, 7, 14, 28, 49, 97, 98, 194, 196, 388, 679, 1129, 1358, 2258, 2716, 4516, 4753, 7903, 9506, 15806, 19012, 31612, 55321, 109513, 110642, 219026, 221284, 438052, 766591, 1533182, 3066364, 5366137, 10732274, 21464548]

約数ペア:

[(1, 21464548), (2, 10732274), (4, 5366137), (7, 3066364), (14, 1533182), (28, 766591), (49, 438052), (97, 221284), (98, 219026), (194, 110642), (196, 109513), (388, 55321), (679, 31612), (1129, 19012), (1358, 15806), (2258, 9506), (2716, 7903), (4516, 4753)]