21416085

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6703}}^1$

素因数の和:6785

約数の個数: 24

約数和(自身を含む): 37649664

約数和(自身を除く): 16233579

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 6703, 20109, 33515, 60327, 100545, 301635, 475913, 1427739, 2379565, 4283217, 7138695, 21416085]

約数ペア:

[(1, 21416085), (3, 7138695), (5, 4283217), (9, 2379565), (15, 1427739), (45, 475913), (71, 301635), (213, 100545), (355, 60327), (639, 33515), (1065, 20109), (3195, 6703)]