18787130

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{43691}}^1$

素因数の和:43741

約数の個数: 16

約数和(自身を含む): 34604064

約数和(自身を除く): 15816934

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 43691, 87382, 218455, 436910, 1878713, 3757426, 9393565, 18787130]

約数ペア:

[(1, 18787130), (2, 9393565), (5, 3757426), (10, 1878713), (43, 436910), (86, 218455), (215, 87382), (430, 43691)]