211698907

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 258785280

約数和(自身を除く): 47086373

約数列:

[1, 7, 31, 53, 79, 217, 233, 371, 553, 1631, 1643, 2449, 4187, 7223, 11501, 12349, 17143, 18407, 29309, 50561, 86443, 128849, 129797, 382819, 570617, 908579, 975571, 2679733, 3994319, 6828997, 30242701, 211698907]

約数ペア:

[(1, 211698907), (7, 30242701), (31, 6828997), (53, 3994319), (79, 2679733), (217, 975571), (233, 908579), (371, 570617), (553, 382819), (1631, 129797), (1643, 128849), (2449, 86443), (4187, 50561), (7223, 29309), (11501, 18407), (12349, 17143)]