20015911

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{281}}^1$

素因数の和:486

約数の個数: 16

約数和(自身を含む): 22199040

約数和(自身を除く): 2183129

約数列:

[1, 19, 23, 163, 281, 437, 3097, 3749, 5339, 6463, 45803, 71231, 122797, 870257, 1053469, 20015911]

約数ペア:

[(1, 20015911), (19, 1053469), (23, 870257), (163, 122797), (281, 71231), (437, 45803), (3097, 6463), (3749, 5339)]