20807199

素因数分解:

$3^4\times 7^1\times {\mathrm{36697}}^1$

素因数の和:36716

約数の個数: 20

約数和(自身を含む): 35523664

約数和(自身を除く): 14716465

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 36697, 110091, 256879, 330273, 770637, 990819, 2311911, 2972457, 6935733, 20807199]

約数ペア:

[(1, 20807199), (3, 6935733), (7, 2972457), (9, 2311911), (21, 990819), (27, 770637), (63, 330273), (81, 256879), (189, 110091), (567, 36697)]