20738169

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1307}}^1$

素因数の和:1397

約数の個数: 24

約数和(自身を含む): 31423392

約数和(自身を除く): 10685223

約数列:

[1, 3, 9, 41, 43, 123, 129, 369, 387, 1307, 1763, 3921, 5289, 11763, 15867, 53587, 56201, 160761, 168603, 482283, 505809, 2304241, 6912723, 20738169]

約数ペア:

[(1, 20738169), (3, 6912723), (9, 2304241), (41, 505809), (43, 482283), (123, 168603), (129, 160761), (369, 56201), (387, 53587), (1307, 15867), (1763, 11763), (3921, 5289)]