19499974

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{1693}}^1$

素因数の和:2151

約数の個数: 16

約数和(自身を含む): 31589712

約数和(自身を除く): 12089738

約数列:

[1, 2, 13, 26, 443, 886, 1693, 3386, 5759, 11518, 22009, 44018, 749999, 1499998, 9749987, 19499974]

約数ペア:

[(1, 19499974), (2, 9749987), (13, 1499998), (26, 749999), (443, 44018), (886, 22009), (1693, 11518), (3386, 5759)]