18504045

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:192

約数の個数: 80

約数和(自身を含む): 38890368

約数和(自身を除く): 20386323

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 61, 63, 81, 105, 107, 135, 183, 189, 305, 315, 321, 405, 427, 535, 549, 567, 749, 915, 945, 963, 1281, 1605, 1647, 2135, 2247, 2745, 2835, 2889, 3745, 3843, 4815, 4941, 6405, 6527, 6741, 8235, 8667, 11235, 11529, 14445, 19215, 19581, 20223, 24705, 32635, 33705, 34587, 43335, 45689, 57645, 58743, 60669, 97905, 101115, 137067, 172935, 176229, 228445, 293715, 303345, 411201, 528687, 685335, 881145, 1233603, 2056005, 2643435, 3700809, 6168015, 18504045]

約数ペア:

[(1, 18504045), (3, 6168015), (5, 3700809), (7, 2643435), (9, 2056005), (15, 1233603), (21, 881145), (27, 685335), (35, 528687), (45, 411201), (61, 303345), (63, 293715), (81, 228445), (105, 176229), (107, 172935), (135, 137067), (183, 101115), (189, 97905), (305, 60669), (315, 58743), (321, 57645), (405, 45689), (427, 43335), (535, 34587), (549, 33705), (567, 32635), (749, 24705), (915, 20223), (945, 19581), (963, 19215), (1281, 14445), (1605, 11529), (1647, 11235), (2135, 8667), (2247, 8235), (2745, 6741), (2835, 6527), (2889, 6405), (3745, 4941), (3843, 4815)]