19304487

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{3907}}^1$

素因数の和:3980

約数の個数: 20

約数和(自身を含む): 29317816

約数和(自身を除く): 10013329

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 3907, 4941, 11721, 35163, 105489, 238327, 316467, 714981, 2144943, 6434829, 19304487]

約数ペア:

[(1, 19304487), (3, 6434829), (9, 2144943), (27, 714981), (61, 316467), (81, 238327), (183, 105489), (549, 35163), (1647, 11721), (3907, 4941)]