216720505

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{19463}}^1$

素因数の和:19616

約数の個数: 16

約数和(自身を含む): 277478784

約数和(自身を除く): 60758279

約数列:

[1, 5, 17, 85, 131, 655, 2227, 11135, 19463, 97315, 330871, 1654355, 2549653, 12748265, 43344101, 216720505]

約数ペア:

[(1, 216720505), (5, 43344101), (17, 12748265), (85, 2549653), (131, 1654355), (655, 330871), (2227, 97315), (11135, 19463)]