19557616

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5531}}^1$

素因数の和:5569

約数の個数: 40

約数和(自身を含む): 43215984

約数和(自身を除く): 23658368

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 5531, 11062, 22124, 44248, 71903, 88496, 94027, 143806, 188054, 287612, 376108, 575224, 752216, 1150448, 1222351, 1504432, 2444702, 4889404, 9778808, 19557616]

約数ペア:

[(1, 19557616), (2, 9778808), (4, 4889404), (8, 2444702), (13, 1504432), (16, 1222351), (17, 1150448), (26, 752216), (34, 575224), (52, 376108), (68, 287612), (104, 188054), (136, 143806), (208, 94027), (221, 88496), (272, 71903), (442, 44248), (884, 22124), (1768, 11062), (3536, 5531)]