19686765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 19504275

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 41, 51, 85, 105, 119, 123, 205, 255, 269, 287, 357, 595, 615, 697, 807, 861, 1345, 1435, 1785, 1883, 2091, 3485, 4035, 4305, 4573, 4879, 5649, 9415, 10455, 11029, 13719, 14637, 22865, 24395, 28245, 32011, 33087, 55145, 68595, 73185, 77203, 96033, 160055, 165435, 187493, 231609, 386015, 480165, 562479, 937465, 1158045, 1312451, 2812395, 3937353, 6562255, 19686765]

約数ペア:

[(1, 19686765), (3, 6562255), (5, 3937353), (7, 2812395), (15, 1312451), (17, 1158045), (21, 937465), (35, 562479), (41, 480165), (51, 386015), (85, 231609), (105, 187493), (119, 165435), (123, 160055), (205, 96033), (255, 77203), (269, 73185), (287, 68595), (357, 55145), (595, 33087), (615, 32011), (697, 28245), (807, 24395), (861, 22865), (1345, 14637), (1435, 13719), (1785, 11029), (1883, 10455), (2091, 9415), (3485, 5649), (4035, 4879), (4305, 4573)]