211085991

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{72613}}^1$

素因数の和:72655

約数の個数: 24

約数和(自身を含む): 339833520

約数和(自身を除く): 128747529

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 72613, 217839, 653517, 1234421, 1379647, 3703263, 4138941, 11109789, 12416823, 23453999, 70361997, 211085991]

約数ペア:

[(1, 211085991), (3, 70361997), (9, 23453999), (17, 12416823), (19, 11109789), (51, 4138941), (57, 3703263), (153, 1379647), (171, 1234421), (323, 653517), (969, 217839), (2907, 72613)]