21383175

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{25919}}^1$

素因数の和:25943

約数の個数: 24

約数和(自身を含む): 38568960

約数和(自身を除く): 17185785

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 25919, 77757, 129595, 285109, 388785, 647975, 855327, 1425545, 1943925, 4276635, 7127725, 21383175]

約数ペア:

[(1, 21383175), (3, 7127725), (5, 4276635), (11, 1943925), (15, 1425545), (25, 855327), (33, 647975), (55, 388785), (75, 285109), (165, 129595), (275, 77757), (825, 25919)]