30639749

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{877}}^1$

素因数の和:945

約数の個数: 24

約数和(自身を含む): 38435328

約数和(自身を除く): 7795579

約数列:

[1, 7, 23, 31, 49, 161, 217, 713, 877, 1127, 1519, 4991, 6139, 20171, 27187, 34937, 42973, 141197, 190309, 625301, 988379, 1332163, 4377107, 30639749]

約数ペア:

[(1, 30639749), (7, 4377107), (23, 1332163), (31, 988379), (49, 625301), (161, 190309), (217, 141197), (713, 42973), (877, 34937), (1127, 27187), (1519, 20171), (4991, 6139)]