20155177

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1\times {\mathrm{317}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 23933952

約数和(自身を除く): 3778775

約数列:

[1, 7, 31, 217, 293, 317, 2051, 2219, 9083, 9827, 63581, 68789, 92881, 650167, 2879311, 20155177]

約数ペア:

[(1, 20155177), (7, 2879311), (31, 650167), (217, 92881), (293, 68789), (317, 63581), (2051, 9827), (2219, 9083)]