28263807

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21961}}^1$

素因数の和:21991

約数の個数: 24

約数和(自身を含む): 47965008

約数和(自身を除く): 19701201

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 21961, 65883, 197649, 241571, 285493, 724713, 856479, 2174139, 2569437, 3140423, 9421269, 28263807]

約数ペア:

[(1, 28263807), (3, 9421269), (9, 3140423), (11, 2569437), (13, 2174139), (33, 856479), (39, 724713), (99, 285493), (117, 241571), (143, 197649), (429, 65883), (1287, 21961)]