21085388620

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14442047}}^1$

素因数の和:14442129

約数の個数: 24

約数和(自身を含む): 44885885184

約数和(自身を除く): 23800496564

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14442047, 28884094, 57768188, 72210235, 144420470, 288840940, 1054269431, 2108538862, 4217077724, 5271347155, 10542694310, 21085388620]

約数ペア:

[(1, 21085388620), (2, 10542694310), (4, 5271347155), (5, 4217077724), (10, 2108538862), (20, 1054269431), (73, 288840940), (146, 144420470), (292, 72210235), (365, 57768188), (730, 28884094), (1460, 14442047)]