28871199

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{14783}}^1$

素因数の和:14827

約数の個数: 24

約数和(自身を含む): 49201152

約数和(自身を除く): 20329953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 14783, 44349, 103481, 133047, 310443, 458273, 931329, 1374819, 3207911, 4124457, 9623733, 28871199]

約数ペア:

[(1, 28871199), (3, 9623733), (7, 4124457), (9, 3207911), (21, 1374819), (31, 931329), (63, 458273), (93, 310443), (217, 133047), (279, 103481), (651, 44349), (1953, 14783)]