221495408

素因数分解:

$2^4\times {\mathrm{43}}^2\times {\mathrm{7487}}^1$

素因数の和:7581

約数の個数: 30

約数和(自身を含む): 439418304

約数和(自身を除く): 217922896

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 1849, 3698, 7396, 7487, 14792, 14974, 29584, 29948, 59896, 119792, 321941, 643882, 1287764, 2575528, 5151056, 13843463, 27686926, 55373852, 110747704, 221495408]

約数ペア:

[(1, 221495408), (2, 110747704), (4, 55373852), (8, 27686926), (16, 13843463), (43, 5151056), (86, 2575528), (172, 1287764), (344, 643882), (688, 321941), (1849, 119792), (3698, 59896), (7396, 29948), (7487, 29584), (14792, 14974)]