21064185

素因数分解:

$3^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{463}}^1$

素因数の和:814

約数の個数: 32

約数和(自身を含む): 37639680

約数和(自身を除く): 16575495

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 337, 463, 1011, 1389, 1685, 2315, 3033, 4167, 5055, 6945, 9099, 12501, 15165, 20835, 45495, 62505, 156031, 468093, 780155, 1404279, 2340465, 4212837, 7021395, 21064185]

約数ペア:

[(1, 21064185), (3, 7021395), (5, 4212837), (9, 2340465), (15, 1404279), (27, 780155), (45, 468093), (135, 156031), (337, 62505), (463, 45495), (1011, 20835), (1389, 15165), (1685, 12501), (2315, 9099), (3033, 6945), (4167, 5055)]