21843871

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2341}}^1$

素因数の和:2422

約数の個数: 16

約数和(自身を含む): 26380288

約数和(自身を除く): 4536417

約数列:

[1, 7, 31, 43, 217, 301, 1333, 2341, 9331, 16387, 72571, 100663, 507997, 704641, 3120553, 21843871]

約数ペア:

[(1, 21843871), (7, 3120553), (31, 704641), (43, 507997), (217, 100663), (301, 72571), (1333, 16387), (2341, 9331)]