21533183

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{239}}^1$

素因数の和:518

約数の個数: 16

約数和(自身を含む): 25236480

約数和(自身を除く): 3703297

約数列:

[1, 7, 61, 211, 239, 427, 1477, 1673, 12871, 14579, 50429, 90097, 102053, 353003, 3076169, 21533183]

約数ペア:

[(1, 21533183), (7, 3076169), (61, 353003), (211, 102053), (239, 90097), (427, 50429), (1477, 14579), (1673, 12871)]