21993716

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{587}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 22459084

約数列:

[1, 2, 4, 17, 19, 29, 34, 38, 58, 68, 76, 116, 323, 493, 551, 587, 646, 986, 1102, 1174, 1292, 1972, 2204, 2348, 9367, 9979, 11153, 17023, 18734, 19958, 22306, 34046, 37468, 39916, 44612, 68092, 189601, 289391, 323437, 379202, 578782, 646874, 758404, 1157564, 1293748, 5498429, 10996858, 21993716]

約数ペア:

[(1, 21993716), (2, 10996858), (4, 5498429), (17, 1293748), (19, 1157564), (29, 758404), (34, 646874), (38, 578782), (58, 379202), (68, 323437), (76, 289391), (116, 189601), (323, 68092), (493, 44612), (551, 39916), (587, 37468), (646, 34046), (986, 22306), (1102, 19958), (1174, 18734), (1292, 17023), (1972, 11153), (2204, 9979), (2348, 9367)]