20416572

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:184

約数の個数: 108

約数和(自身を含む): 58578520

約数和(自身を除く): 38161948

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 43, 44, 66, 86, 99, 109, 121, 129, 132, 172, 198, 218, 242, 258, 327, 363, 387, 396, 436, 473, 484, 516, 654, 726, 774, 946, 981, 1089, 1199, 1308, 1419, 1452, 1548, 1892, 1962, 2178, 2398, 2838, 3597, 3924, 4257, 4356, 4687, 4796, 5203, 5676, 7194, 8514, 9374, 10406, 10791, 13189, 14061, 14388, 15609, 17028, 18748, 20812, 21582, 26378, 28122, 31218, 39567, 42183, 43164, 46827, 51557, 52756, 56244, 62436, 79134, 84366, 93654, 103114, 118701, 154671, 158268, 168732, 187308, 206228, 237402, 309342, 464013, 474804, 567127, 618684, 928026, 1134254, 1701381, 1856052, 2268508, 3402762, 5104143, 6805524, 10208286, 20416572]

約数ペア:

[(1, 20416572), (2, 10208286), (3, 6805524), (4, 5104143), (6, 3402762), (9, 2268508), (11, 1856052), (12, 1701381), (18, 1134254), (22, 928026), (33, 618684), (36, 567127), (43, 474804), (44, 464013), (66, 309342), (86, 237402), (99, 206228), (109, 187308), (121, 168732), (129, 158268), (132, 154671), (172, 118701), (198, 103114), (218, 93654), (242, 84366), (258, 79134), (327, 62436), (363, 56244), (387, 52756), (396, 51557), (436, 46827), (473, 43164), (484, 42183), (516, 39567), (654, 31218), (726, 28122), (774, 26378), (946, 21582), (981, 20812), (1089, 18748), (1199, 17028), (1308, 15609), (1419, 14388), (1452, 14061), (1548, 13189), (1892, 10791), (1962, 10406), (2178, 9374), (2398, 8514), (2838, 7194), (3597, 5676), (3924, 5203), (4257, 4796), (4356, 4687)]