28890279

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{15359}}^1$

素因数の和:15395

約数の個数: 24

約数和(自身を含む): 47923200

約数和(自身を除く): 19032921

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 15359, 46077, 138231, 168949, 291821, 506847, 875463, 1520541, 2626389, 3210031, 9630093, 28890279]

約数ペア:

[(1, 28890279), (3, 9630093), (9, 3210031), (11, 2626389), (19, 1520541), (33, 875463), (57, 506847), (99, 291821), (171, 168949), (209, 138231), (627, 46077), (1881, 15359)]