21289059

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{599}}^1$

素因数の和:975

約数の個数: 24

約数和(自身を含む): 33696000

約数和(自身を除く): 12406941

約数列:

[1, 3, 9, 11, 33, 99, 359, 599, 1077, 1797, 3231, 3949, 5391, 6589, 11847, 19767, 35541, 59301, 215041, 645123, 1935369, 2365451, 7096353, 21289059]

約数ペア:

[(1, 21289059), (3, 7096353), (9, 2365451), (11, 1935369), (33, 645123), (99, 215041), (359, 59301), (599, 35541), (1077, 19767), (1797, 11847), (3231, 6589), (3949, 5391)]