15640221

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{2341}}^1$

素因数の和:2492

約数の個数: 16

約数和(自身を含む): 22258368

約数和(自身を除く): 6618147

約数列:

[1, 3, 17, 51, 131, 393, 2227, 2341, 6681, 7023, 39797, 119391, 306671, 920013, 5213407, 15640221]

約数ペア:

[(1, 15640221), (3, 5213407), (17, 920013), (51, 306671), (131, 119391), (393, 39797), (2227, 7023), (2341, 6681)]