21842217

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{6577}}^1$

素因数の和:6630

約数の個数: 20

約数和(自身を含む): 33429396

約数和(自身を除く): 11587179

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 6577, 19731, 59193, 177579, 269657, 532737, 808971, 2426913, 7280739, 21842217]

約数ペア:

[(1, 21842217), (3, 7280739), (9, 2426913), (27, 808971), (41, 532737), (81, 269657), (123, 177579), (369, 59193), (1107, 19731), (3321, 6577)]