21595743

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1409}}^1$

素因数の和:1559

約数の個数: 24

約数和(自身を含む): 33873840

約数和(自身を除く): 12278097

約数列:

[1, 3, 9, 13, 39, 117, 131, 393, 1179, 1409, 1703, 4227, 5109, 12681, 15327, 18317, 54951, 164853, 184579, 553737, 1661211, 2399527, 7198581, 21595743]

約数ペア:

[(1, 21595743), (3, 7198581), (9, 2399527), (13, 1661211), (39, 553737), (117, 184579), (131, 164853), (393, 54951), (1179, 18317), (1409, 15327), (1703, 12681), (4227, 5109)]