21172635

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42773}}^1$

素因数の和:42795

約数の個数: 24

約数和(自身を含む): 40036464

約数和(自身を除く): 18863829

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 42773, 128319, 213865, 384957, 470503, 641595, 1411509, 1924785, 2352515, 4234527, 7057545, 21172635]

約数ペア:

[(1, 21172635), (3, 7057545), (5, 4234527), (9, 2352515), (11, 1924785), (15, 1411509), (33, 641595), (45, 470503), (55, 384957), (99, 213865), (165, 128319), (495, 42773)]