20722689

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1373}}^1$

素因数の和:1438

約数の個数: 32

約数和(自身を含む): 33855360

約数和(自身を除く): 13132671

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 351, 387, 559, 1161, 1373, 1677, 4119, 5031, 12357, 15093, 17849, 37071, 53547, 59039, 160641, 177117, 481923, 531351, 767507, 1594053, 2302521, 6907563, 20722689]

約数ペア:

[(1, 20722689), (3, 6907563), (9, 2302521), (13, 1594053), (27, 767507), (39, 531351), (43, 481923), (117, 177117), (129, 160641), (351, 59039), (387, 53547), (559, 37071), (1161, 17849), (1373, 15093), (1677, 12357), (4119, 5031)]