221389105

素因数分解:

$5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{13487}}^1$

素因数の和:13573

約数の個数: 24

約数和(自身を含む): 313676928

約数和(自身を除く): 92287823

約数列:

[1, 5, 7, 35, 49, 67, 245, 335, 469, 2345, 3283, 13487, 16415, 67435, 94409, 472045, 660863, 903629, 3304315, 4518145, 6325403, 31627015, 44277821, 221389105]

約数ペア:

[(1, 221389105), (5, 44277821), (7, 31627015), (35, 6325403), (49, 4518145), (67, 3304315), (245, 903629), (335, 660863), (469, 472045), (2345, 94409), (3283, 67435), (13487, 16415)]