18725355

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 37761360

約数和(自身を除く): 19036005

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 121, 165, 171, 181, 209, 285, 363, 495, 543, 605, 627, 855, 905, 1045, 1089, 1629, 1815, 1881, 1991, 2299, 2715, 3135, 3439, 5445, 5973, 6897, 8145, 9405, 9955, 10317, 11495, 17195, 17919, 20691, 21901, 29865, 30951, 34485, 37829, 51585, 65703, 89595, 103455, 109505, 113487, 154755, 189145, 197109, 328515, 340461, 416119, 567435, 985545, 1248357, 1702305, 2080595, 3745071, 6241785, 18725355]

約数ペア:

[(1, 18725355), (3, 6241785), (5, 3745071), (9, 2080595), (11, 1702305), (15, 1248357), (19, 985545), (33, 567435), (45, 416119), (55, 340461), (57, 328515), (95, 197109), (99, 189145), (121, 154755), (165, 113487), (171, 109505), (181, 103455), (209, 89595), (285, 65703), (363, 51585), (495, 37829), (543, 34485), (605, 30951), (627, 29865), (855, 21901), (905, 20691), (1045, 17919), (1089, 17195), (1629, 11495), (1815, 10317), (1881, 9955), (1991, 9405), (2299, 8145), (2715, 6897), (3135, 5973), (3439, 5445)]