211065471

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{2749}}^1$

素因数の和:3223

約数の個数: 24

約数和(自身を含む): 321750000

約数和(自身を除く): 110684529

約数列:

[1, 3, 9, 19, 57, 171, 449, 1347, 2749, 4041, 8247, 8531, 24741, 25593, 52231, 76779, 156693, 470079, 1234301, 3702903, 11108709, 23451719, 70355157, 211065471]

約数ペア:

[(1, 211065471), (3, 70355157), (9, 23451719), (19, 11108709), (57, 3702903), (171, 1234301), (449, 470079), (1347, 156693), (2749, 76779), (4041, 52231), (8247, 25593), (8531, 24741)]