19499085

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 36391680

約数和(自身を除く): 16892595

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 71, 85, 153, 213, 255, 355, 359, 639, 765, 1065, 1077, 1207, 1795, 3195, 3231, 3621, 5385, 6035, 6103, 10863, 16155, 18105, 18309, 25489, 30515, 54315, 54927, 76467, 91545, 127445, 229401, 274635, 382335, 433313, 1147005, 1299939, 2166565, 3899817, 6499695, 19499085]

約数ペア:

[(1, 19499085), (3, 6499695), (5, 3899817), (9, 2166565), (15, 1299939), (17, 1147005), (45, 433313), (51, 382335), (71, 274635), (85, 229401), (153, 127445), (213, 91545), (255, 76467), (355, 54927), (359, 54315), (639, 30515), (765, 25489), (1065, 18309), (1077, 18105), (1207, 16155), (1795, 10863), (3195, 6103), (3231, 6035), (3621, 5385)]