20925135

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1$

素因数の和:107

約数の個数: 120

約数和(自身を含む): 47892768

約数和(自身を除く): 26967633

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 61, 63, 77, 81, 99, 105, 121, 135, 165, 183, 189, 231, 297, 305, 315, 363, 385, 405, 427, 495, 549, 567, 605, 671, 693, 847, 891, 915, 945, 1089, 1155, 1281, 1485, 1647, 1815, 2013, 2079, 2135, 2541, 2745, 2835, 3267, 3355, 3465, 3843, 4235, 4455, 4697, 4941, 5445, 6039, 6237, 6405, 7381, 7623, 8235, 9801, 10065, 10395, 11529, 12705, 14091, 16335, 18117, 19215, 22143, 22869, 23485, 24705, 30195, 31185, 34587, 36905, 38115, 42273, 49005, 51667, 54351, 57645, 66429, 68607, 70455, 90585, 110715, 114345, 126819, 155001, 172935, 199287, 211365, 258335, 271755, 332145, 343035, 380457, 465003, 597861, 634095, 775005, 996435, 1395009, 1902285, 2325015, 2989305, 4185027, 6975045, 20925135]

約数ペア:

[(1, 20925135), (3, 6975045), (5, 4185027), (7, 2989305), (9, 2325015), (11, 1902285), (15, 1395009), (21, 996435), (27, 775005), (33, 634095), (35, 597861), (45, 465003), (55, 380457), (61, 343035), (63, 332145), (77, 271755), (81, 258335), (99, 211365), (105, 199287), (121, 172935), (135, 155001), (165, 126819), (183, 114345), (189, 110715), (231, 90585), (297, 70455), (305, 68607), (315, 66429), (363, 57645), (385, 54351), (405, 51667), (427, 49005), (495, 42273), (549, 38115), (567, 36905), (605, 34587), (671, 31185), (693, 30195), (847, 24705), (891, 23485), (915, 22869), (945, 22143), (1089, 19215), (1155, 18117), (1281, 16335), (1485, 14091), (1647, 12705), (1815, 11529), (2013, 10395), (2079, 10065), (2135, 9801), (2541, 8235), (2745, 7623), (2835, 7381), (3267, 6405), (3355, 6237), (3465, 6039), (3843, 5445), (4235, 4941), (4455, 4697)]