20718285

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{373}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 39709824

約数和(自身を除く): 18991539

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 373, 483, 529, 805, 1119, 1587, 1865, 2415, 2611, 2645, 3703, 5595, 7833, 7935, 8579, 11109, 13055, 18515, 25737, 39165, 42895, 55545, 60053, 128685, 180159, 197317, 300265, 591951, 900795, 986585, 1381219, 2959755, 4143657, 6906095, 20718285]

約数ペア:

[(1, 20718285), (3, 6906095), (5, 4143657), (7, 2959755), (15, 1381219), (21, 986585), (23, 900795), (35, 591951), (69, 300265), (105, 197317), (115, 180159), (161, 128685), (345, 60053), (373, 55545), (483, 42895), (529, 39165), (805, 25737), (1119, 18515), (1587, 13055), (1865, 11109), (2415, 8579), (2611, 7935), (2645, 7833), (3703, 5595)]