212385957

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{4481}}^1$

素因数の和:4589

約数の個数: 32

約数和(自身を含む): 337906944

約数和(自身を除く): 125520987

約数列:

[1, 3, 7, 21, 37, 61, 111, 183, 259, 427, 777, 1281, 2257, 4481, 6771, 13443, 15799, 31367, 47397, 94101, 165797, 273341, 497391, 820023, 1160579, 1913387, 3481737, 5740161, 10113617, 30340851, 70795319, 212385957]

約数ペア:

[(1, 212385957), (3, 70795319), (7, 30340851), (21, 10113617), (37, 5740161), (61, 3481737), (111, 1913387), (183, 1160579), (259, 820023), (427, 497391), (777, 273341), (1281, 165797), (2257, 94101), (4481, 47397), (6771, 31367), (13443, 15799)]