31660239

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{53}}^2$

素因数の和:156

約数の個数: 36

約数和(自身を含む): 49220696

約数和(自身を除く): 17560457

約数列:

[1, 3, 13, 17, 39, 51, 53, 159, 221, 289, 663, 689, 867, 901, 2067, 2703, 2809, 3757, 8427, 11271, 11713, 15317, 35139, 36517, 45951, 47753, 109551, 143259, 199121, 597363, 620789, 811801, 1862367, 2435403, 10553413, 31660239]

約数ペア:

[(1, 31660239), (3, 10553413), (13, 2435403), (17, 1862367), (39, 811801), (51, 620789), (53, 597363), (159, 199121), (221, 143259), (289, 109551), (663, 47753), (689, 45951), (867, 36517), (901, 35139), (2067, 15317), (2703, 11713), (2809, 11271), (3757, 8427)]