20511279

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{39983}}^1$

素因数の和:40011

約数の個数: 16

約数和(自身を含む): 31987200

約数和(自身を除く): 11475921

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 39983, 119949, 359847, 759677, 1079541, 2279031, 6837093, 20511279]

約数ペア:

[(1, 20511279), (3, 6837093), (9, 2279031), (19, 1079541), (27, 759677), (57, 359847), (171, 119949), (513, 39983)]