21347205

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1931}}^1$

素因数の和:2017

約数の個数: 32

約数和(自身を含む): 37836288

約数和(自身を除く): 16489083

約数列:

[1, 3, 5, 11, 15, 33, 55, 67, 165, 201, 335, 737, 1005, 1931, 2211, 3685, 5793, 9655, 11055, 21241, 28965, 63723, 106205, 129377, 318615, 388131, 646885, 1423147, 1940655, 4269441, 7115735, 21347205]

約数ペア:

[(1, 21347205), (3, 7115735), (5, 4269441), (11, 1940655), (15, 1423147), (33, 646885), (55, 388131), (67, 318615), (165, 129377), (201, 106205), (335, 63723), (737, 28965), (1005, 21241), (1931, 11055), (2211, 9655), (3685, 5793)]