81841558

素因数分解:

$2^1\times {\mathrm{37}}^2\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:568

約数の個数: 24

約数和(自身を含む): 128250864

約数和(自身を除く): 46409306

約数列:

[1, 2, 37, 71, 74, 142, 421, 842, 1369, 2627, 2738, 5254, 15577, 29891, 31154, 59782, 97199, 194398, 576349, 1105967, 1152698, 2211934, 40920779, 81841558]

約数ペア:

[(1, 81841558), (2, 40920779), (37, 2211934), (71, 1152698), (74, 1105967), (142, 576349), (421, 194398), (842, 97199), (1369, 59782), (2627, 31154), (2738, 29891), (5254, 15577)]