51131115

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{887}}^1$

素因数の和:969

約数の個数: 64

約数和(自身を含む): 105707520

約数和(自身を除く): 54576405

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 61, 63, 105, 135, 183, 189, 305, 315, 427, 549, 887, 915, 945, 1281, 1647, 2135, 2661, 2745, 3843, 4435, 6209, 6405, 7983, 8235, 11529, 13305, 18627, 19215, 23949, 31045, 39915, 54107, 55881, 57645, 93135, 119745, 162321, 167643, 270535, 279405, 378749, 486963, 811605, 838215, 1136247, 1460889, 1893745, 2434815, 3408741, 5681235, 7304445, 10226223, 17043705, 51131115]

約数ペア:

[(1, 51131115), (3, 17043705), (5, 10226223), (7, 7304445), (9, 5681235), (15, 3408741), (21, 2434815), (27, 1893745), (35, 1460889), (45, 1136247), (61, 838215), (63, 811605), (105, 486963), (135, 378749), (183, 279405), (189, 270535), (305, 167643), (315, 162321), (427, 119745), (549, 93135), (887, 57645), (915, 55881), (945, 54107), (1281, 39915), (1647, 31045), (2135, 23949), (2661, 19215), (2745, 18627), (3843, 13305), (4435, 11529), (6209, 8235), (6405, 7983)]