19904265

素因数分解:

$3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3137}}^1$

素因数の和:3198

約数の個数: 32

約数和(自身を含む): 36149760

約数和(自身を除く): 16245495

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 135, 141, 235, 423, 705, 1269, 2115, 3137, 6345, 9411, 15685, 28233, 47055, 84699, 141165, 147439, 423495, 442317, 737195, 1326951, 2211585, 3980853, 6634755, 19904265]

約数ペア:

[(1, 19904265), (3, 6634755), (5, 3980853), (9, 2211585), (15, 1326951), (27, 737195), (45, 442317), (47, 423495), (135, 147439), (141, 141165), (235, 84699), (423, 47055), (705, 28233), (1269, 15685), (2115, 9411), (3137, 6345)]