15561945

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 31150080

約数和(自身を除く): 15588135

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 127, 315, 381, 389, 635, 889, 1143, 1167, 1905, 1945, 2667, 2723, 3501, 4445, 5715, 5835, 8001, 8169, 13335, 13615, 17505, 24507, 40005, 40845, 49403, 122535, 148209, 247015, 345821, 444627, 741045, 1037463, 1729105, 2223135, 3112389, 5187315, 15561945]

約数ペア:

[(1, 15561945), (3, 5187315), (5, 3112389), (7, 2223135), (9, 1729105), (15, 1037463), (21, 741045), (35, 444627), (45, 345821), (63, 247015), (105, 148209), (127, 122535), (315, 49403), (381, 40845), (389, 40005), (635, 24507), (889, 17505), (1143, 13615), (1167, 13335), (1905, 8169), (1945, 8001), (2667, 5835), (2723, 5715), (3501, 4445)]