20479797

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{2161}}^1$

素因数の和:2192

約数の個数: 28

約数和(自身を含む): 33082924

約数和(自身を除く): 12603127

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 2161, 3159, 6483, 9477, 19449, 28093, 58347, 84279, 175041, 252837, 525123, 758511, 1575369, 2275533, 6826599, 20479797]

約数ペア:

[(1, 20479797), (3, 6826599), (9, 2275533), (13, 1575369), (27, 758511), (39, 525123), (81, 252837), (117, 175041), (243, 84279), (351, 58347), (729, 28093), (1053, 19449), (2161, 9477), (3159, 6483)]