21000814

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:145

約数の個数: 48

約数和(自身を含む): 37033200

約数和(自身を除く): 16032386

約数列:

[1, 2, 17, 19, 29, 34, 38, 58, 59, 118, 323, 361, 493, 551, 646, 722, 986, 1003, 1102, 1121, 1711, 2006, 2242, 3422, 6137, 9367, 10469, 12274, 18734, 19057, 20938, 21299, 29087, 32509, 38114, 42598, 58174, 65018, 177973, 355946, 362083, 552653, 617671, 724166, 1105306, 1235342, 10500407, 21000814]

約数ペア:

[(1, 21000814), (2, 10500407), (17, 1235342), (19, 1105306), (29, 724166), (34, 617671), (38, 552653), (58, 362083), (59, 355946), (118, 177973), (323, 65018), (361, 58174), (493, 42598), (551, 38114), (646, 32509), (722, 29087), (986, 21299), (1003, 20938), (1102, 19057), (1121, 18734), (1711, 12274), (2006, 10469), (2242, 9367), (3422, 6137)]