660891

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2861}}^1$

素因数の和:2882

約数の個数: 16

約数和(自身を含む): 1099008

約数和(自身を除く): 438117

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 2861, 8583, 20027, 31471, 60081, 94413, 220297, 660891]

約数ペア:

[(1, 660891), (3, 220297), (7, 94413), (11, 60081), (21, 31471), (33, 20027), (77, 8583), (231, 2861)]