20728298199

素因数分解:

$3^1\times 7^1\times {\mathrm{4243}}^1\times {\mathrm{232633}}^1$

素因数の和:236886

約数の個数: 16

約数和(自身を含む): 31593558272

約数和(自身を除く): 10865260073

約数列:

[1, 3, 7, 21, 4243, 12729, 29701, 89103, 232633, 697899, 1628431, 4885293, 987061819, 2961185457, 6909432733, 20728298199]

約数ペア:

[(1, 20728298199), (3, 6909432733), (7, 2961185457), (21, 987061819), (4243, 4885293), (12729, 1628431), (29701, 697899), (89103, 232633)]