18781226

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:326

約数の個数: 32

約数和(自身を含む): 31269888

約数和(自身を除く): 12488662

約数列:

[1, 2, 17, 31, 34, 62, 103, 173, 206, 346, 527, 1054, 1751, 2941, 3193, 3502, 5363, 5882, 6386, 10726, 17819, 35638, 54281, 91171, 108562, 182342, 302923, 552389, 605846, 1104778, 9390613, 18781226]

約数ペア:

[(1, 18781226), (2, 9390613), (17, 1104778), (31, 605846), (34, 552389), (62, 302923), (103, 182342), (173, 108562), (206, 91171), (346, 54281), (527, 35638), (1054, 17819), (1751, 10726), (2941, 6386), (3193, 5882), (3502, 5363)]