20729553

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{1523}}^1$

素因数の和:1888

約数の個数: 16

約数和(自身を含む): 29870400

約数和(自身を除く): 9140847

約数列:

[1, 3, 13, 39, 349, 1047, 1523, 4537, 4569, 13611, 19799, 59397, 531527, 1594581, 6909851, 20729553]

約数ペア:

[(1, 20729553), (3, 6909851), (13, 1594581), (39, 531527), (349, 59397), (1047, 19799), (1523, 13611), (4537, 4569)]