18972591

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{8581}}^1$

素因数の和:8662

約数の個数: 16

約数和(自身を含む): 28011648

約数和(自身を除く): 9039057

約数列:

[1, 3, 11, 33, 67, 201, 737, 2211, 8581, 25743, 94391, 283173, 574927, 1724781, 6324197, 18972591]

約数ペア:

[(1, 18972591), (3, 6324197), (11, 1724781), (33, 574927), (67, 283173), (201, 94391), (737, 25743), (2211, 8581)]