20533128

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:339

約数の個数: 128

約数和(自身を含む): 65802240

約数和(自身を除く): 45269112

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 41, 42, 44, 56, 66, 77, 82, 84, 88, 123, 132, 154, 164, 168, 231, 246, 264, 271, 287, 308, 328, 451, 462, 492, 542, 574, 616, 813, 861, 902, 924, 984, 1084, 1148, 1353, 1626, 1722, 1804, 1848, 1897, 2168, 2296, 2706, 2981, 3157, 3252, 3444, 3608, 3794, 5412, 5691, 5962, 6314, 6504, 6888, 7588, 8943, 9471, 10824, 11111, 11382, 11924, 12628, 15176, 17886, 18942, 20867, 22222, 22764, 23848, 25256, 33333, 35772, 37884, 41734, 44444, 45528, 62601, 66666, 71544, 75768, 77777, 83468, 88888, 122221, 125202, 133332, 155554, 166936, 233331, 244442, 250404, 266664, 311108, 366663, 466662, 488884, 500808, 622216, 733326, 855547, 933324, 977768, 1466652, 1711094, 1866648, 2566641, 2933304, 3422188, 5133282, 6844376, 10266564, 20533128]

約数ペア:

[(1, 20533128), (2, 10266564), (3, 6844376), (4, 5133282), (6, 3422188), (7, 2933304), (8, 2566641), (11, 1866648), (12, 1711094), (14, 1466652), (21, 977768), (22, 933324), (24, 855547), (28, 733326), (33, 622216), (41, 500808), (42, 488884), (44, 466662), (56, 366663), (66, 311108), (77, 266664), (82, 250404), (84, 244442), (88, 233331), (123, 166936), (132, 155554), (154, 133332), (164, 125202), (168, 122221), (231, 88888), (246, 83468), (264, 77777), (271, 75768), (287, 71544), (308, 66666), (328, 62601), (451, 45528), (462, 44444), (492, 41734), (542, 37884), (574, 35772), (616, 33333), (813, 25256), (861, 23848), (902, 22764), (924, 22222), (984, 20867), (1084, 18942), (1148, 17886), (1353, 15176), (1626, 12628), (1722, 11924), (1804, 11382), (1848, 11111), (1897, 10824), (2168, 9471), (2296, 8943), (2706, 7588), (2981, 6888), (3157, 6504), (3252, 6314), (3444, 5962), (3608, 5691), (3794, 5412)]