81791423

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 101326848

約数和(自身を除く): 19535425

約数列:

[1, 7, 31, 37, 61, 167, 217, 259, 427, 1147, 1169, 1891, 2257, 5177, 6179, 8029, 10187, 13237, 15799, 36239, 43253, 69967, 71309, 191549, 315797, 376919, 489769, 1340843, 2210579, 2638433, 11684489, 81791423]

約数ペア:

[(1, 81791423), (7, 11684489), (31, 2638433), (37, 2210579), (61, 1340843), (167, 489769), (217, 376919), (259, 315797), (427, 191549), (1147, 71309), (1169, 69967), (1891, 43253), (2257, 36239), (5177, 15799), (6179, 13237), (8029, 10187)]