20802705

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:147

約数の個数: 96

約数和(自身を含む): 44126208

約数和(自身を除く): 23323503

約数列:

[1, 3, 5, 7, 11, 15, 21, 31, 33, 35, 49, 55, 77, 83, 93, 105, 147, 155, 165, 217, 231, 245, 249, 341, 385, 415, 465, 539, 581, 651, 735, 913, 1023, 1085, 1155, 1245, 1519, 1617, 1705, 1743, 2387, 2573, 2695, 2739, 2905, 3255, 4067, 4557, 4565, 5115, 6391, 7161, 7595, 7719, 8085, 8715, 11935, 12201, 12865, 13695, 16709, 18011, 19173, 20335, 22785, 28303, 31955, 35805, 38595, 44737, 50127, 54033, 61005, 83545, 84909, 90055, 95865, 126077, 134211, 141515, 198121, 223685, 250635, 270165, 378231, 424545, 594363, 630385, 671055, 990605, 1386847, 1891155, 2971815, 4160541, 6934235, 20802705]

約数ペア:

[(1, 20802705), (3, 6934235), (5, 4160541), (7, 2971815), (11, 1891155), (15, 1386847), (21, 990605), (31, 671055), (33, 630385), (35, 594363), (49, 424545), (55, 378231), (77, 270165), (83, 250635), (93, 223685), (105, 198121), (147, 141515), (155, 134211), (165, 126077), (217, 95865), (231, 90055), (245, 84909), (249, 83545), (341, 61005), (385, 54033), (415, 50127), (465, 44737), (539, 38595), (581, 35805), (651, 31955), (735, 28303), (913, 22785), (1023, 20335), (1085, 19173), (1155, 18011), (1245, 16709), (1519, 13695), (1617, 12865), (1705, 12201), (1743, 11935), (2387, 8715), (2573, 8085), (2695, 7719), (2739, 7595), (2905, 7161), (3255, 6391), (4067, 5115), (4557, 4565)]