21666064

素因数分解:

$2^4\times 7^1\times {\mathrm{193447}}^1$

素因数の和:193462

約数の個数: 20

約数和(自身を含む): 47975104

約数和(自身を除く): 26309040

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 193447, 386894, 773788, 1354129, 1547576, 2708258, 3095152, 5416516, 10833032, 21666064]

約数ペア:

[(1, 21666064), (2, 10833032), (4, 5416516), (7, 3095152), (8, 2708258), (14, 1547576), (16, 1354129), (28, 773788), (56, 386894), (112, 193447)]