20899868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{27941}}^1$

素因数の和:27973

約数の個数: 24

約数和(自身を含む): 42248304

約数和(自身を除く): 21348436

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748, 27941, 55882, 111764, 307351, 474997, 614702, 949994, 1229404, 1899988, 5224967, 10449934, 20899868]

約数ペア:

[(1, 20899868), (2, 10449934), (4, 5224967), (11, 1899988), (17, 1229404), (22, 949994), (34, 614702), (44, 474997), (68, 307351), (187, 111764), (374, 55882), (748, 27941)]