12640551

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{54721}}^1$

素因数の和:54742

約数の個数: 16

約数和(自身を含む): 21013248

約数和(自身を除く): 8372697

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 54721, 164163, 383047, 601931, 1149141, 1805793, 4213517, 12640551]

約数ペア:

[(1, 12640551), (3, 4213517), (7, 1805793), (11, 1149141), (21, 601931), (33, 383047), (77, 164163), (231, 54721)]