21000609

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10753}}^1$

素因数の和:10797

約数の個数: 24

約数和(自身を含む): 35789312

約数和(自身を除く): 14788703

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 10753, 32259, 75271, 96777, 225813, 333343, 677439, 1000029, 2333401, 3000087, 7000203, 21000609]

約数ペア:

[(1, 21000609), (3, 7000203), (7, 3000087), (9, 2333401), (21, 1000029), (31, 677439), (63, 333343), (93, 225813), (217, 96777), (279, 75271), (651, 32259), (1953, 10753)]