21386580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{356443}}^1$

素因数の和:356455

約数の個数: 24

約数和(自身を含む): 59882592

約数和(自身を除く): 38496012

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 356443, 712886, 1069329, 1425772, 1782215, 2138658, 3564430, 4277316, 5346645, 7128860, 10693290, 21386580]

約数ペア:

[(1, 21386580), (2, 10693290), (3, 7128860), (4, 5346645), (5, 4277316), (6, 3564430), (10, 2138658), (12, 1782215), (15, 1425772), (20, 1069329), (30, 712886), (60, 356443)]