20944612

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:125

約数の個数: 96

約数和(自身を含む): 46569600

約数和(自身を除く): 25624988

約数列:

[1, 2, 4, 13, 17, 19, 26, 29, 34, 38, 43, 52, 58, 68, 76, 86, 116, 172, 221, 247, 323, 377, 442, 493, 494, 551, 559, 646, 731, 754, 817, 884, 986, 988, 1102, 1118, 1247, 1292, 1462, 1508, 1634, 1972, 2204, 2236, 2494, 2924, 3268, 4199, 4988, 6409, 7163, 8398, 9367, 9503, 10621, 12818, 13889, 14326, 16211, 16796, 18734, 19006, 21199, 21242, 23693, 25636, 27778, 28652, 32422, 37468, 38012, 42398, 42484, 47386, 55556, 64844, 84796, 94772, 121771, 180557, 243542, 275587, 308009, 361114, 402781, 487084, 551174, 616018, 722228, 805562, 1102348, 1232036, 1611124, 5236153, 10472306, 20944612]

約数ペア:

[(1, 20944612), (2, 10472306), (4, 5236153), (13, 1611124), (17, 1232036), (19, 1102348), (26, 805562), (29, 722228), (34, 616018), (38, 551174), (43, 487084), (52, 402781), (58, 361114), (68, 308009), (76, 275587), (86, 243542), (116, 180557), (172, 121771), (221, 94772), (247, 84796), (323, 64844), (377, 55556), (442, 47386), (493, 42484), (494, 42398), (551, 38012), (559, 37468), (646, 32422), (731, 28652), (754, 27778), (817, 25636), (884, 23693), (986, 21242), (988, 21199), (1102, 19006), (1118, 18734), (1247, 16796), (1292, 16211), (1462, 14326), (1508, 13889), (1634, 12818), (1972, 10621), (2204, 9503), (2236, 9367), (2494, 8398), (2924, 7163), (3268, 6409), (4199, 4988)]