20771023

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 27238400

約数和(自身を除く): 6467377

約数列:

[1, 7, 13, 31, 37, 91, 199, 217, 259, 403, 481, 1147, 1393, 2587, 2821, 3367, 6169, 7363, 8029, 14911, 18109, 43183, 51541, 80197, 95719, 104377, 228253, 561379, 670033, 1597771, 2967289, 20771023]

約数ペア:

[(1, 20771023), (7, 2967289), (13, 1597771), (31, 670033), (37, 561379), (91, 228253), (199, 104377), (217, 95719), (259, 80197), (403, 51541), (481, 43183), (1147, 18109), (1393, 14911), (2587, 8029), (2821, 7363), (3367, 6169)]