21898261

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{16729}}^1$

素因数の和:16764

約数の個数: 16

約数和(自身を含む): 28909440

約数和(自身を除く): 7011179

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 16729, 117103, 184019, 284393, 1288133, 1990751, 3128323, 21898261]

約数ペア:

[(1, 21898261), (7, 3128323), (11, 1990751), (17, 1288133), (77, 284393), (119, 184019), (187, 117103), (1309, 16729)]