20556501

素因数分解:

$3^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{4919}}^1$

素因数の和:5128

約数の個数: 16

約数和(自身を含む): 31488000

約数和(自身を除く): 10931499

約数列:

[1, 3, 7, 21, 199, 597, 1393, 4179, 4919, 14757, 34433, 103299, 978881, 2936643, 6852167, 20556501]

約数ペア:

[(1, 20556501), (3, 6852167), (7, 2936643), (21, 978881), (199, 103299), (597, 34433), (1393, 14757), (4179, 4919)]