28185157

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{761}}^1$

素因数の和:829

約数の個数: 32

約数和(自身を含む): 38916864

約数和(自身を除く): 10731707

約数列:

[1, 7, 11, 13, 37, 77, 91, 143, 259, 407, 481, 761, 1001, 2849, 3367, 5291, 5327, 8371, 9893, 28157, 37037, 58597, 69251, 108823, 197099, 309727, 366041, 761761, 2168089, 2562287, 4026451, 28185157]

約数ペア:

[(1, 28185157), (7, 4026451), (11, 2562287), (13, 2168089), (37, 761761), (77, 366041), (91, 309727), (143, 197099), (259, 108823), (407, 69251), (481, 58597), (761, 37037), (1001, 28157), (2849, 9893), (3367, 8371), (5291, 5327)]