21775523

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{547}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 27987456

約数和(自身を除く): 6211933

約数列:

[1, 7, 11, 47, 77, 121, 329, 517, 547, 847, 3619, 3829, 5687, 6017, 25709, 39809, 42119, 66187, 179963, 282799, 463309, 1979593, 3110789, 21775523]

約数ペア:

[(1, 21775523), (7, 3110789), (11, 1979593), (47, 463309), (77, 282799), (121, 179963), (329, 66187), (517, 42119), (547, 39809), (847, 25709), (3619, 6017), (3829, 5687)]