21298277

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21277}}^1$

素因数の和:21308

約数の個数: 16

約数和(自身を含む): 28597632

約数和(自身を除く): 7299355

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 21277, 148939, 234047, 276601, 1638329, 1936207, 3042611, 21298277]

約数ペア:

[(1, 21298277), (7, 3042611), (11, 1936207), (13, 1638329), (77, 276601), (91, 234047), (143, 148939), (1001, 21277)]