18918494

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43591}}^1$

素因数の和:43631

約数の個数: 16

約数和(自身を含む): 33478656

約数和(自身を除く): 14560162

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 43591, 87182, 305137, 610274, 1351321, 2702642, 9459247, 18918494]

約数ペア:

[(1, 18918494), (2, 9459247), (7, 2702642), (14, 1351321), (31, 610274), (62, 305137), (217, 87182), (434, 43591)]