12990699

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{367}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 21373440

約数和(自身を除く): 8382741

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 81, 171, 207, 367, 437, 513, 621, 1101, 1311, 1539, 1863, 3303, 3933, 6973, 8441, 9909, 11799, 20919, 25323, 29727, 35397, 62757, 75969, 160379, 188271, 227907, 481137, 564813, 683721, 1443411, 4330233, 12990699]

約数ペア:

[(1, 12990699), (3, 4330233), (9, 1443411), (19, 683721), (23, 564813), (27, 481137), (57, 227907), (69, 188271), (81, 160379), (171, 75969), (207, 62757), (367, 35397), (437, 29727), (513, 25323), (621, 20919), (1101, 11799), (1311, 9909), (1539, 8441), (1863, 6973), (3303, 3933)]