56578781

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{823}}^1$

素因数の和:921

約数の個数: 24

約数和(自身を含む): 69888384

約数和(自身を除く): 13309603

約数列:

[1, 7, 23, 49, 61, 161, 427, 823, 1127, 1403, 2989, 5761, 9821, 18929, 40327, 50203, 68747, 132503, 351421, 927521, 1154669, 2459947, 8082683, 56578781]

約数ペア:

[(1, 56578781), (7, 8082683), (23, 2459947), (49, 1154669), (61, 927521), (161, 351421), (427, 132503), (823, 68747), (1127, 50203), (1403, 40327), (2989, 18929), (5761, 9821)]