20983131

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19927}}^1$

素因数の和:19952

約数の個数: 20

約数和(自身を含む): 33758032

約数和(自身を除く): 12774901

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 19927, 59781, 179343, 259051, 538029, 777153, 1614087, 2331459, 6994377, 20983131]

約数ペア:

[(1, 20983131), (3, 6994377), (9, 2331459), (13, 1614087), (27, 777153), (39, 538029), (81, 259051), (117, 179343), (351, 59781), (1053, 19927)]