21088496

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{709}}^1$

素因数の和:754

約数の個数: 60

約数和(自身を含む): 48333960

約数和(自身を除く): 27245464

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 169, 176, 208, 286, 338, 572, 676, 709, 1144, 1352, 1418, 1859, 2288, 2704, 2836, 3718, 5672, 7436, 7799, 9217, 11344, 14872, 15598, 18434, 29744, 31196, 36868, 62392, 73736, 101387, 119821, 124784, 147472, 202774, 239642, 405548, 479284, 811096, 958568, 1318031, 1622192, 1917136, 2636062, 5272124, 10544248, 21088496]

約数ペア:

[(1, 21088496), (2, 10544248), (4, 5272124), (8, 2636062), (11, 1917136), (13, 1622192), (16, 1318031), (22, 958568), (26, 811096), (44, 479284), (52, 405548), (88, 239642), (104, 202774), (143, 147472), (169, 124784), (176, 119821), (208, 101387), (286, 73736), (338, 62392), (572, 36868), (676, 31196), (709, 29744), (1144, 18434), (1352, 15598), (1418, 14872), (1859, 11344), (2288, 9217), (2704, 7799), (2836, 7436), (3718, 5672)]