21440451

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{1759}}^1$

素因数の和:2018

約数の個数: 16

約数和(自身を含む): 30412800

約数和(自身を除く): 8972349

約数列:

[1, 3, 17, 51, 239, 717, 1759, 4063, 5277, 12189, 29903, 89709, 420401, 1261203, 7146817, 21440451]

約数ペア:

[(1, 21440451), (3, 7146817), (17, 1261203), (51, 420401), (239, 89709), (717, 29903), (1759, 12189), (4063, 5277)]