28312389

素因数分解:

$3^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2539}}^1$

素因数の和:2614

約数の個数: 32

約数和(自身を含む): 48768000

約数和(自身を除く): 20455611

約数列:

[1, 3, 7, 9, 21, 27, 59, 63, 177, 189, 413, 531, 1239, 1593, 2539, 3717, 7617, 11151, 17773, 22851, 53319, 68553, 149801, 159957, 449403, 479871, 1048607, 1348209, 3145821, 4044627, 9437463, 28312389]

約数ペア:

[(1, 28312389), (3, 9437463), (7, 4044627), (9, 3145821), (21, 1348209), (27, 1048607), (59, 479871), (63, 449403), (177, 159957), (189, 149801), (413, 68553), (531, 53319), (1239, 22851), (1593, 17773), (2539, 11151), (3717, 7617)]