20210571387

素因数分解:

$3^4\times {\mathrm{431}}^1\times {\mathrm{578917}}^1$

素因数の和:579360

約数の個数: 20

約数和(自身を含む): 30261201696

約数和(自身を除く): 10050630309

約数列:

[1, 3, 9, 27, 81, 431, 1293, 3879, 11637, 34911, 578917, 1736751, 5210253, 15630759, 46892277, 249513227, 748539681, 2245619043, 6736857129, 20210571387]

約数ペア:

[(1, 20210571387), (3, 6736857129), (9, 2245619043), (27, 748539681), (81, 249513227), (431, 46892277), (1293, 15630759), (3879, 5210253), (11637, 1736751), (34911, 578917)]