17865253

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 21769440

約数和(自身を除く): 3904187

約数列:

[1, 7, 43, 49, 61, 139, 301, 427, 973, 2107, 2623, 2989, 5977, 6811, 8479, 18361, 41839, 59353, 128527, 292873, 364597, 415471, 2552179, 17865253]

約数ペア:

[(1, 17865253), (7, 2552179), (43, 415471), (49, 364597), (61, 292873), (139, 128527), (301, 59353), (427, 41839), (973, 18361), (2107, 8479), (2623, 6811), (2989, 5977)]