21038894

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{19961}}^1$

素因数の和:20011

約数の個数: 16

約数和(自身を含む): 34494336

約数和(自身を除く): 13455442

約数列:

[1, 2, 17, 31, 34, 62, 527, 1054, 19961, 39922, 339337, 618791, 678674, 1237582, 10519447, 21038894]

約数ペア:

[(1, 21038894), (2, 10519447), (17, 1237582), (31, 678674), (34, 618791), (62, 339337), (527, 39922), (1054, 19961)]