19648994

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1\times {\mathrm{521}}^1$

素因数の和:805

約数の個数: 16

約数和(自身を含む): 29973240

約数和(自身を除く): 10324246

約数列:

[1, 2, 109, 173, 218, 346, 521, 1042, 18857, 37714, 56789, 90133, 113578, 180266, 9824497, 19648994]

約数ペア:

[(1, 19648994), (2, 9824497), (109, 180266), (173, 113578), (218, 90133), (346, 56789), (521, 37714), (1042, 18857)]