20288037

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1237}}^1$

素因数の和:1329

約数の個数: 32

約数和(自身を含む): 34228224

約数和(自身を除く): 13940187

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 213, 231, 497, 781, 1237, 1491, 2343, 3711, 5467, 8659, 13607, 16401, 25977, 40821, 87827, 95249, 263481, 285747, 614789, 966097, 1844367, 2898291, 6762679, 20288037]

約数ペア:

[(1, 20288037), (3, 6762679), (7, 2898291), (11, 1844367), (21, 966097), (33, 614789), (71, 285747), (77, 263481), (213, 95249), (231, 87827), (497, 40821), (781, 25977), (1237, 16401), (1491, 13607), (2343, 8659), (3711, 5467)]