17947521

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{28901}}^1$

素因数の和:28933

約数の個数: 16

約数和(自身を含む): 27745920

約数和(自身を除く): 9798399

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 28901, 86703, 260109, 664723, 780327, 1994169, 5982507, 17947521]

約数ペア:

[(1, 17947521), (3, 5982507), (9, 1994169), (23, 780327), (27, 664723), (69, 260109), (207, 86703), (621, 28901)]