21216762

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{37}}^2\times {\mathrm{41}}^1$

素因数の和:133

約数の個数: 96

約数和(自身を含む): 56730240

約数和(自身を除く): 35513478

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 37, 41, 42, 54, 63, 74, 82, 111, 123, 126, 189, 222, 246, 259, 287, 333, 369, 378, 518, 574, 666, 738, 777, 861, 999, 1107, 1369, 1517, 1554, 1722, 1998, 2214, 2331, 2583, 2738, 3034, 4107, 4551, 4662, 5166, 6993, 7749, 8214, 9102, 9583, 10619, 12321, 13653, 13986, 15498, 19166, 21238, 24642, 27306, 28749, 31857, 36963, 40959, 56129, 57498, 63714, 73926, 81918, 86247, 95571, 112258, 168387, 172494, 191142, 258741, 286713, 336774, 392903, 505161, 517482, 573426, 785806, 1010322, 1178709, 1515483, 2357418, 3030966, 3536127, 7072254, 10608381, 21216762]

約数ペア:

[(1, 21216762), (2, 10608381), (3, 7072254), (6, 3536127), (7, 3030966), (9, 2357418), (14, 1515483), (18, 1178709), (21, 1010322), (27, 785806), (37, 573426), (41, 517482), (42, 505161), (54, 392903), (63, 336774), (74, 286713), (82, 258741), (111, 191142), (123, 172494), (126, 168387), (189, 112258), (222, 95571), (246, 86247), (259, 81918), (287, 73926), (333, 63714), (369, 57498), (378, 56129), (518, 40959), (574, 36963), (666, 31857), (738, 28749), (777, 27306), (861, 24642), (999, 21238), (1107, 19166), (1369, 15498), (1517, 13986), (1554, 13653), (1722, 12321), (1998, 10619), (2214, 9583), (2331, 9102), (2583, 8214), (2738, 7749), (3034, 6993), (4107, 5166), (4551, 4662)]