21601215

素因数分解:

$3^3\times 5^1\times {\mathrm{160009}}^1$

素因数の和:160023

約数の個数: 16

約数和(自身を含む): 38402400

約数和(自身を除く): 16801185

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 160009, 480027, 800045, 1440081, 2400135, 4320243, 7200405, 21601215]

約数ペア:

[(1, 21601215), (3, 7200405), (5, 4320243), (9, 2400135), (15, 1440081), (27, 800045), (45, 480027), (135, 160009)]