20855481

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{2141}}^1$

素因数の和:2352

約数の個数: 16

約数和(自身を含む): 29611008

約数和(自身を除く): 8755527

約数列:

[1, 3, 17, 51, 191, 573, 2141, 3247, 6423, 9741, 36397, 109191, 408931, 1226793, 6951827, 20855481]

約数ペア:

[(1, 20855481), (3, 6951827), (17, 1226793), (51, 408931), (191, 109191), (573, 36397), (2141, 9741), (3247, 6423)]