21252842

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{19937}}^1$

素因数の和:19993

約数の個数: 16

約数和(自身を含む): 35170632

約数和(自身を除く): 13917790

約数列:

[1, 2, 13, 26, 41, 82, 533, 1066, 19937, 39874, 259181, 518362, 817417, 1634834, 10626421, 21252842]

約数ペア:

[(1, 21252842), (2, 10626421), (13, 1634834), (26, 817417), (41, 518362), (82, 259181), (533, 39874), (1066, 19937)]