20664123

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{3907}}^1$

素因数の和:3994

約数の個数: 16

約数和(自身を含む): 28887936

約数和(自身を除く): 8223813

約数列:

[1, 3, 41, 43, 123, 129, 1763, 3907, 5289, 11721, 160187, 168001, 480561, 504003, 6888041, 20664123]

約数ペア:

[(1, 20664123), (3, 6888041), (41, 504003), (43, 480561), (123, 168001), (129, 160187), (1763, 11721), (3907, 5289)]