217638544

素因数分解:

$2^4\times {\mathrm{1217}}^1\times {\mathrm{11177}}^1$

素因数の和:12402

約数の個数: 20

約数和(自身を含む): 422058924

約数和(自身を除く): 204420380

約数列:

[1, 2, 4, 8, 16, 1217, 2434, 4868, 9736, 11177, 19472, 22354, 44708, 89416, 178832, 13602409, 27204818, 54409636, 108819272, 217638544]

約数ペア:

[(1, 217638544), (2, 108819272), (4, 54409636), (8, 27204818), (16, 13602409), (1217, 178832), (2434, 89416), (4868, 44708), (9736, 22354), (11177, 19472)]