8641491

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 13063680

約数和(自身を除く): 4422189

約数列:

[1, 3, 17, 23, 51, 53, 69, 139, 159, 391, 417, 901, 1173, 1219, 2363, 2703, 3197, 3657, 7089, 7367, 9591, 20723, 22101, 54349, 62169, 125239, 163047, 169441, 375717, 508323, 2880497, 8641491]

約数ペア:

[(1, 8641491), (3, 2880497), (17, 508323), (23, 375717), (51, 169441), (53, 163047), (69, 125239), (139, 62169), (159, 54349), (391, 22101), (417, 20723), (901, 9591), (1173, 7367), (1219, 7089), (2363, 3657), (2703, 3197)]