210991105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{170843}}^1$

素因数の和:170880

約数の個数: 16

約数和(自身を含む): 287017920

約数和(自身を除く): 76026815

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 170843, 854215, 2220959, 3246017, 11104795, 16230085, 42198221, 210991105]

約数ペア:

[(1, 210991105), (5, 42198221), (13, 16230085), (19, 11104795), (65, 3246017), (95, 2220959), (247, 854215), (1235, 170843)]