21983754

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:375

約数の個数: 64

約数和(自身を含む): 51166080

約数和(自身を除く): 29182326

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 59, 78, 102, 118, 177, 221, 281, 354, 442, 562, 663, 767, 843, 1003, 1326, 1534, 1686, 2006, 2301, 3009, 3653, 4602, 4777, 6018, 7306, 9554, 10959, 13039, 14331, 16579, 21918, 26078, 28662, 33158, 39117, 49737, 62101, 78234, 99474, 124202, 186303, 215527, 281843, 372606, 431054, 563686, 646581, 845529, 1293162, 1691058, 3663959, 7327918, 10991877, 21983754]

約数ペア:

[(1, 21983754), (2, 10991877), (3, 7327918), (6, 3663959), (13, 1691058), (17, 1293162), (26, 845529), (34, 646581), (39, 563686), (51, 431054), (59, 372606), (78, 281843), (102, 215527), (118, 186303), (177, 124202), (221, 99474), (281, 78234), (354, 62101), (442, 49737), (562, 39117), (663, 33158), (767, 28662), (843, 26078), (1003, 21918), (1326, 16579), (1534, 14331), (1686, 13039), (2006, 10959), (2301, 9554), (3009, 7306), (3653, 6018), (4602, 4777)]