20666009

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 6429031

約数列:

[1, 7, 13, 29, 41, 91, 191, 203, 287, 377, 533, 1189, 1337, 2483, 2639, 3731, 5539, 7831, 8323, 15457, 17381, 38773, 54817, 72007, 101803, 108199, 227099, 504049, 712621, 1589693, 2952287, 20666009]

約数ペア:

[(1, 20666009), (7, 2952287), (13, 1589693), (29, 712621), (41, 504049), (91, 227099), (191, 108199), (203, 101803), (287, 72007), (377, 54817), (533, 38773), (1189, 17381), (1337, 15457), (2483, 8323), (2639, 7831), (3731, 5539)]