20204821

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{929}}^1$

素因数の和:1188

約数の個数: 16

約数和(自身を含む): 24998400

約数和(自身を除く): 4793579

約数列:

[1, 7, 13, 91, 239, 929, 1673, 3107, 6503, 12077, 21749, 84539, 222031, 1554217, 2886403, 20204821]

約数ペア:

[(1, 20204821), (7, 2886403), (13, 1554217), (91, 222031), (239, 84539), (929, 21749), (1673, 12077), (3107, 6503)]