21738717

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 44728320

約数和(自身を除く): 22989603

約数列:

[1, 3, 7, 9, 11, 13, 19, 21, 33, 39, 57, 63, 77, 91, 99, 117, 127, 133, 143, 171, 209, 231, 247, 273, 381, 399, 429, 627, 693, 741, 819, 889, 1001, 1143, 1197, 1287, 1397, 1463, 1651, 1729, 1881, 2223, 2413, 2667, 2717, 3003, 4191, 4389, 4953, 5187, 7239, 8001, 8151, 9009, 9779, 11557, 12573, 13167, 14859, 15561, 16891, 18161, 19019, 21717, 24453, 26543, 29337, 31369, 34671, 50673, 54483, 57057, 79629, 88011, 94107, 104013, 127127, 152019, 163449, 171171, 185801, 219583, 238887, 282321, 345059, 381381, 557403, 658749, 1035177, 1144143, 1672209, 1976247, 2415413, 3105531, 7246239, 21738717]

約数ペア:

[(1, 21738717), (3, 7246239), (7, 3105531), (9, 2415413), (11, 1976247), (13, 1672209), (19, 1144143), (21, 1035177), (33, 658749), (39, 557403), (57, 381381), (63, 345059), (77, 282321), (91, 238887), (99, 219583), (117, 185801), (127, 171171), (133, 163449), (143, 152019), (171, 127127), (209, 104013), (231, 94107), (247, 88011), (273, 79629), (381, 57057), (399, 54483), (429, 50673), (627, 34671), (693, 31369), (741, 29337), (819, 26543), (889, 24453), (1001, 21717), (1143, 19019), (1197, 18161), (1287, 16891), (1397, 15561), (1463, 14859), (1651, 13167), (1729, 12573), (1881, 11557), (2223, 9779), (2413, 9009), (2667, 8151), (2717, 8001), (3003, 7239), (4191, 5187), (4389, 4953)]