209545917

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{148931}}^1$

素因数の和:149008

約数の個数: 16

約数和(自身を含む): 324076032

約数和(自身を除く): 114530115

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 148931, 446793, 1042517, 3127551, 9978377, 29935131, 69848639, 209545917]

約数ペア:

[(1, 209545917), (3, 69848639), (7, 29935131), (21, 9978377), (67, 3127551), (201, 1042517), (469, 446793), (1407, 148931)]