19100445

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2034

約数の個数: 48

約数和(自身を含む): 38304000

約数和(自身を除く): 19203555

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 195, 245, 273, 455, 637, 735, 1365, 1911, 1999, 3185, 5997, 9555, 9995, 13993, 25987, 29985, 41979, 69965, 77961, 97951, 129935, 181909, 209895, 293853, 389805, 489755, 545727, 909545, 1273363, 1469265, 2728635, 3820089, 6366815, 19100445]

約数ペア:

[(1, 19100445), (3, 6366815), (5, 3820089), (7, 2728635), (13, 1469265), (15, 1273363), (21, 909545), (35, 545727), (39, 489755), (49, 389805), (65, 293853), (91, 209895), (105, 181909), (147, 129935), (195, 97951), (245, 77961), (273, 69965), (455, 41979), (637, 29985), (735, 25987), (1365, 13993), (1911, 9995), (1999, 9555), (3185, 5997)]