18975943

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2741}}^1$

素因数の和:2814

約数の個数: 16

約数和(自身を含む): 23164416

約数和(自身を除く): 4188473

約数列:

[1, 7, 23, 43, 161, 301, 989, 2741, 6923, 19187, 63043, 117863, 441301, 825041, 2710849, 18975943]

約数ペア:

[(1, 18975943), (7, 2710849), (23, 825041), (43, 441301), (161, 117863), (301, 63043), (989, 19187), (2741, 6923)]