21274064

素因数分解:

$2^4\times 7^1\times {\mathrm{189947}}^1$

素因数の和:189962

約数の個数: 20

約数和(自身を含む): 47107104

約数和(自身を除く): 25833040

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189947, 379894, 759788, 1329629, 1519576, 2659258, 3039152, 5318516, 10637032, 21274064]

約数ペア:

[(1, 21274064), (2, 10637032), (4, 5318516), (7, 3039152), (8, 2659258), (14, 1519576), (16, 1329629), (28, 759788), (56, 379894), (112, 189947)]