217971544

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{63809}}^1$

素因数の和:63883

約数の個数: 32

約数和(自身を含む): 474746400

約数和(自身を除く): 256774856

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 63809, 127618, 255236, 446663, 510472, 893326, 1786652, 3573304, 3892349, 7784698, 15569396, 27246443, 31138792, 54492886, 108985772, 217971544]

約数ペア:

[(1, 217971544), (2, 108985772), (4, 54492886), (7, 31138792), (8, 27246443), (14, 15569396), (28, 7784698), (56, 3892349), (61, 3573304), (122, 1786652), (244, 893326), (427, 510472), (488, 446663), (854, 255236), (1708, 127618), (3416, 63809)]