21471663

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{9791}}^1$

素因数の和:9854

約数の個数: 16

約数和(自身を含む): 31021056

約数和(自身を除く): 9549393

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 9791, 29373, 166447, 421013, 499341, 1263039, 7157221, 21471663]

約数ペア:

[(1, 21471663), (3, 7157221), (17, 1263039), (43, 499341), (51, 421013), (129, 166447), (731, 29373), (2193, 9791)]