21993597

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3343}}^1$

素因数の和:3409

約数の個数: 24

約数和(自身を含む): 34429824

約数和(自身を除く): 12436227

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 387, 731, 2193, 3343, 6579, 10029, 30087, 56831, 143749, 170493, 431247, 511479, 1293741, 2443733, 7331199, 21993597]

約数ペア:

[(1, 21993597), (3, 7331199), (9, 2443733), (17, 1293741), (43, 511479), (51, 431247), (129, 170493), (153, 143749), (387, 56831), (731, 30087), (2193, 10029), (3343, 6579)]