21033315

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{8819}}^1$

素因数の和:8883

約数の個数: 24

約数和(自身を含む): 37149840

約数和(自身を除く): 16116525

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 265, 477, 795, 2385, 8819, 26457, 44095, 79371, 132285, 396855, 467407, 1402221, 2337035, 4206663, 7011105, 21033315]

約数ペア:

[(1, 21033315), (3, 7011105), (5, 4206663), (9, 2337035), (15, 1402221), (45, 467407), (53, 396855), (159, 132285), (265, 79371), (477, 44095), (795, 26457), (2385, 8819)]