18640198

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{881}}^1$

素因数の和:1103

約数の個数: 16

約数和(自身を含む): 28576800

約数和(自身を除く): 9936602

約数列:

[1, 2, 71, 142, 149, 298, 881, 1762, 10579, 21158, 62551, 125102, 131269, 262538, 9320099, 18640198]

約数ペア:

[(1, 18640198), (2, 9320099), (71, 262538), (142, 131269), (149, 125102), (298, 62551), (881, 21158), (1762, 10579)]