27787557

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{9949}}^1$

素因数の和:9985

約数の個数: 24

約数和(自身を含む): 45372000

約数和(自身を除く): 17584443

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 9949, 29847, 69643, 189031, 208929, 487501, 567093, 1323217, 1462503, 3969651, 9262519, 27787557]

約数ペア:

[(1, 27787557), (3, 9262519), (7, 3969651), (19, 1462503), (21, 1323217), (49, 567093), (57, 487501), (133, 208929), (147, 189031), (399, 69643), (931, 29847), (2793, 9949)]