81228706

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{42797}}^1$

素因数の和:42885

約数の個数: 16

約数和(自身を含む): 133016184

約数和(自身を除く): 51787478

約数列:

[1, 2, 13, 26, 73, 146, 949, 1898, 42797, 85594, 556361, 1112722, 3124181, 6248362, 40614353, 81228706]

約数ペア:

[(1, 81228706), (2, 40614353), (13, 6248362), (26, 3124181), (73, 1112722), (146, 556361), (949, 85594), (1898, 42797)]