18840063

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 30336768

約数和(自身を除く): 11496705

約数列:

[1, 3, 11, 17, 33, 43, 51, 71, 121, 129, 187, 213, 363, 473, 561, 731, 781, 1207, 1419, 2057, 2193, 2343, 3053, 3621, 5203, 6171, 8041, 8591, 9159, 13277, 15609, 24123, 25773, 33583, 39831, 51901, 88451, 100749, 146047, 155703, 265353, 369413, 438141, 570911, 1108239, 1712733, 6280021, 18840063]

約数ペア:

[(1, 18840063), (3, 6280021), (11, 1712733), (17, 1108239), (33, 570911), (43, 438141), (51, 369413), (71, 265353), (121, 155703), (129, 146047), (187, 100749), (213, 88451), (363, 51901), (473, 39831), (561, 33583), (731, 25773), (781, 24123), (1207, 15609), (1419, 13277), (2057, 9159), (2193, 8591), (2343, 8041), (3053, 6171), (3621, 5203)]