21788060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8191}}^1$

素因数の和:8226

約数の個数: 48

約数和(自身を含む): 55050240

約数和(自身を除く): 33262180

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 8191, 16382, 32764, 40955, 57337, 81910, 114674, 155629, 163820, 229348, 286685, 311258, 573370, 622516, 778145, 1089403, 1146740, 1556290, 2178806, 3112580, 4357612, 5447015, 10894030, 21788060]

約数ペア:

[(1, 21788060), (2, 10894030), (4, 5447015), (5, 4357612), (7, 3112580), (10, 2178806), (14, 1556290), (19, 1146740), (20, 1089403), (28, 778145), (35, 622516), (38, 573370), (70, 311258), (76, 286685), (95, 229348), (133, 163820), (140, 155629), (190, 114674), (266, 81910), (380, 57337), (532, 40955), (665, 32764), (1330, 16382), (2660, 8191)]