18720537

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{8467}}^1$

素因数の和:8548

約数の個数: 16

約数和(自身を含む): 27639552

約数和(自身を除く): 8919015

約数列:

[1, 3, 11, 33, 67, 201, 737, 2211, 8467, 25401, 93137, 279411, 567289, 1701867, 6240179, 18720537]

約数ペア:

[(1, 18720537), (3, 6240179), (11, 1701867), (33, 567289), (67, 279411), (201, 93137), (737, 25401), (2211, 8467)]