20408397

素因数分解:

$3^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{449}}^1$

素因数の和:700

約数の個数: 16

約数和(自身を含む): 27720000

約数和(自身を除く): 7311603

約数列:

[1, 3, 109, 139, 327, 417, 449, 1347, 15151, 45453, 48941, 62411, 146823, 187233, 6802799, 20408397]

約数ペア:

[(1, 20408397), (3, 6802799), (109, 187233), (139, 146823), (327, 62411), (417, 48941), (449, 45453), (1347, 15151)]