20869809

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{15919}}^1$

素因数の和:15964

約数の個数: 16

約数和(自身を含む): 30566400

約数和(自身を除く): 9696591

約数列:

[1, 3, 19, 23, 57, 69, 437, 1311, 15919, 47757, 302461, 366137, 907383, 1098411, 6956603, 20869809]

約数ペア:

[(1, 20869809), (3, 6956603), (19, 1098411), (23, 907383), (57, 366137), (69, 302461), (437, 47757), (1311, 15919)]