18253543

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 24076800

約数和(自身を除く): 5823257

約数列:

[1, 7, 11, 37, 43, 77, 149, 259, 301, 407, 473, 1043, 1591, 1639, 2849, 3311, 5513, 6407, 11137, 11473, 17501, 38591, 44849, 60643, 70477, 122507, 237059, 424501, 493339, 1659413, 2607649, 18253543]

約数ペア:

[(1, 18253543), (7, 2607649), (11, 1659413), (37, 493339), (43, 424501), (77, 237059), (149, 122507), (259, 70477), (301, 60643), (407, 44849), (473, 38591), (1043, 17501), (1591, 11473), (1639, 11137), (2849, 6407), (3311, 5513)]