18804135

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 36495360

約数和(自身を除く): 17691225

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 53, 93, 105, 109, 155, 159, 217, 265, 327, 371, 465, 545, 651, 763, 795, 1085, 1113, 1635, 1643, 1855, 2289, 3255, 3379, 3815, 4929, 5565, 5777, 8215, 10137, 11445, 11501, 16895, 17331, 23653, 24645, 28885, 34503, 40439, 50685, 57505, 70959, 86655, 118265, 121317, 172515, 179087, 202195, 354795, 537261, 606585, 895435, 1253609, 2686305, 3760827, 6268045, 18804135]

約数ペア:

[(1, 18804135), (3, 6268045), (5, 3760827), (7, 2686305), (15, 1253609), (21, 895435), (31, 606585), (35, 537261), (53, 354795), (93, 202195), (105, 179087), (109, 172515), (155, 121317), (159, 118265), (217, 86655), (265, 70959), (327, 57505), (371, 50685), (465, 40439), (545, 34503), (651, 28885), (763, 24645), (795, 23653), (1085, 17331), (1113, 16895), (1635, 11501), (1643, 11445), (1855, 10137), (2289, 8215), (3255, 5777), (3379, 5565), (3815, 4929)]