28269241

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:973

約数の個数: 32

約数和(自身を含む): 39223296

約数和(自身を除く): 10954055

約数列:

[1, 7, 11, 13, 31, 77, 91, 143, 217, 341, 403, 911, 1001, 2387, 2821, 4433, 6377, 10021, 11843, 28241, 31031, 70147, 82901, 130273, 197687, 310651, 367133, 911911, 2174557, 2569931, 4038463, 28269241]

約数ペア:

[(1, 28269241), (7, 4038463), (11, 2569931), (13, 2174557), (31, 911911), (77, 367133), (91, 310651), (143, 197687), (217, 130273), (341, 82901), (403, 70147), (911, 31031), (1001, 28241), (2387, 11843), (2821, 10021), (4433, 6377)]