21116163

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2917}}^1$

素因数の和:3066

約数の個数: 16

約数和(自身を含む): 29880320

約数和(自身を除く): 8764157

約数列:

[1, 3, 19, 57, 127, 381, 2413, 2917, 7239, 8751, 55423, 166269, 370459, 1111377, 7038721, 21116163]

約数ペア:

[(1, 21116163), (3, 7038721), (19, 1111377), (57, 370459), (127, 166269), (381, 55423), (2413, 8751), (2917, 7239)]