21015495

素因数分解:

$3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2609}}^1$

素因数の和:2799

約数の個数: 24

約数和(自身を含む): 36644400

約数和(自身を除く): 15628905

約数列:

[1, 3, 5, 9, 15, 45, 179, 537, 895, 1611, 2609, 2685, 7827, 8055, 13045, 23481, 39135, 117405, 467011, 1401033, 2335055, 4203099, 7005165, 21015495]

約数ペア:

[(1, 21015495), (3, 7005165), (5, 4203099), (9, 2335055), (15, 1401033), (45, 467011), (179, 117405), (537, 39135), (895, 23481), (1611, 13045), (2609, 8055), (2685, 7827)]