21069968395

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{105263}}^1$

素因数の和:105344

約数の個数: 48

約数和(自身を含む): 31680253440

約数和(自身を除く): 10610285045

約数列:

[1, 5, 7, 19, 35, 43, 49, 95, 133, 215, 245, 301, 665, 817, 931, 1505, 2107, 4085, 4655, 5719, 10535, 28595, 40033, 105263, 200165, 526315, 736841, 1999997, 3684205, 4526309, 5157887, 9999985, 13999979, 22631545, 25789435, 31684163, 69999895, 85999871, 97999853, 158420815, 221789141, 429999355, 489999265, 601999097, 1108945705, 3009995485, 4213993679, 21069968395]

約数ペア:

[(1, 21069968395), (5, 4213993679), (7, 3009995485), (19, 1108945705), (35, 601999097), (43, 489999265), (49, 429999355), (95, 221789141), (133, 158420815), (215, 97999853), (245, 85999871), (301, 69999895), (665, 31684163), (817, 25789435), (931, 22631545), (1505, 13999979), (2107, 9999985), (4085, 5157887), (4655, 4526309), (5719, 3684205), (10535, 1999997), (28595, 736841), (40033, 526315), (105263, 200165)]