281123997

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1216987}}^1$

素因数の和:1217008

約数の個数: 16

約数和(自身を含む): 467323392

約数和(自身を除く): 186199395

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 1216987, 3650961, 8518909, 13386857, 25556727, 40160571, 93707999, 281123997]

約数ペア:

[(1, 281123997), (3, 93707999), (7, 40160571), (11, 25556727), (21, 13386857), (33, 8518909), (77, 3650961), (231, 1216987)]