81243886

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{25759}}^1$

素因数の和:25863

約数の個数: 16

約数和(自身を含む): 129830400

約数和(自身を除く): 48586514

約数列:

[1, 2, 19, 38, 83, 166, 1577, 3154, 25759, 51518, 489421, 978842, 2137997, 4275994, 40621943, 81243886]

約数ペア:

[(1, 81243886), (2, 40621943), (19, 4275994), (38, 2137997), (83, 978842), (166, 489421), (1577, 51518), (3154, 25759)]