21522564

素因数分解:

$2^2\times 3^3\times 7^4\times {\mathrm{83}}^1$

素因数の和:124

約数の個数: 120

約数和(自身を含む): 65879520

約数和(自身を除く): 44356956

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 83, 84, 98, 108, 126, 147, 166, 189, 196, 249, 252, 294, 332, 343, 378, 441, 498, 581, 588, 686, 747, 756, 882, 996, 1029, 1162, 1323, 1372, 1494, 1743, 1764, 2058, 2241, 2324, 2401, 2646, 2988, 3087, 3486, 4067, 4116, 4482, 4802, 5229, 5292, 6174, 6972, 7203, 8134, 8964, 9261, 9604, 10458, 12201, 12348, 14406, 15687, 16268, 18522, 20916, 21609, 24402, 28469, 28812, 31374, 36603, 37044, 43218, 48804, 56938, 62748, 64827, 73206, 85407, 86436, 109809, 113876, 129654, 146412, 170814, 199283, 219618, 256221, 259308, 341628, 398566, 439236, 512442, 597849, 768663, 797132, 1024884, 1195698, 1537326, 1793547, 2391396, 3074652, 3587094, 5380641, 7174188, 10761282, 21522564]

約数ペア:

[(1, 21522564), (2, 10761282), (3, 7174188), (4, 5380641), (6, 3587094), (7, 3074652), (9, 2391396), (12, 1793547), (14, 1537326), (18, 1195698), (21, 1024884), (27, 797132), (28, 768663), (36, 597849), (42, 512442), (49, 439236), (54, 398566), (63, 341628), (83, 259308), (84, 256221), (98, 219618), (108, 199283), (126, 170814), (147, 146412), (166, 129654), (189, 113876), (196, 109809), (249, 86436), (252, 85407), (294, 73206), (332, 64827), (343, 62748), (378, 56938), (441, 48804), (498, 43218), (581, 37044), (588, 36603), (686, 31374), (747, 28812), (756, 28469), (882, 24402), (996, 21609), (1029, 20916), (1162, 18522), (1323, 16268), (1372, 15687), (1494, 14406), (1743, 12348), (1764, 12201), (2058, 10458), (2241, 9604), (2324, 9261), (2401, 8964), (2646, 8134), (2988, 7203), (3087, 6972), (3486, 6174), (4067, 5292), (4116, 5229), (4482, 4802)]