18881018

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{4297}}^1$

素因数の和:4338

約数の個数: 16

約数和(自身を含む): 30687720

約数和(自身を除く): 11806702

約数列:

[1, 2, 13, 26, 169, 338, 2197, 4297, 4394, 8594, 55861, 111722, 726193, 1452386, 9440509, 18881018]

約数ペア:

[(1, 18881018), (2, 9440509), (13, 1452386), (26, 726193), (169, 111722), (338, 55861), (2197, 8594), (4297, 4394)]