17975419

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 23569920

約数和(自身を除く): 5594501

約数列:

[1, 7, 11, 43, 61, 77, 89, 301, 427, 473, 623, 671, 979, 2623, 3311, 3827, 4697, 5429, 6853, 18361, 26789, 28853, 38003, 42097, 59719, 201971, 233447, 294679, 418033, 1634129, 2567917, 17975419]

約数ペア:

[(1, 17975419), (7, 2567917), (11, 1634129), (43, 418033), (61, 294679), (77, 233447), (89, 201971), (301, 59719), (427, 42097), (473, 38003), (623, 28853), (671, 26789), (979, 18361), (2623, 6853), (3311, 5429), (3827, 4697)]