21557789139

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{1709}}^1\times {\mathrm{221303}}^1$

素因数の和:223034

約数の個数: 16

約数和(自身を含む): 30274387200

約数和(自身を除く): 8716598061

約数列:

[1, 3, 19, 57, 1709, 5127, 32471, 97413, 221303, 663909, 4204757, 12614271, 378206827, 1134620481, 7185929713, 21557789139]

約数ペア:

[(1, 21557789139), (3, 7185929713), (19, 1134620481), (57, 378206827), (1709, 12614271), (5127, 4204757), (32471, 663909), (97413, 221303)]