18741518

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{1031}}^1$

素因数の和:1243

約数の個数: 16

約数和(自身を含む): 28792800

約数和(自身を除く): 10051282

約数列:

[1, 2, 61, 122, 149, 298, 1031, 2062, 9089, 18178, 62891, 125782, 153619, 307238, 9370759, 18741518]

約数ペア:

[(1, 18741518), (2, 9370759), (61, 307238), (122, 153619), (149, 125782), (298, 62891), (1031, 18178), (2062, 9089)]