291247488021

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{729943579}}^1$

素因数の和:729943608

約数の個数: 16

約数和(自身を含む): 467163891200

約数和(自身を除く): 175916403179

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 729943579, 2189830737, 5109605053, 13868928001, 15328815159, 41606784003, 97082496007, 291247488021]

約数ペア:

[(1, 291247488021), (3, 97082496007), (7, 41606784003), (19, 15328815159), (21, 13868928001), (57, 5109605053), (133, 2189830737), (399, 729943579)]