16978905

素因数分解:

$3^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1051}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 29540160

約数和(自身を除く): 12561255

約数列:

[1, 3, 5, 9, 15, 45, 359, 1051, 1077, 1795, 3153, 3231, 5255, 5385, 9459, 15765, 16155, 47295, 377309, 1131927, 1886545, 3395781, 5659635, 16978905]

約数ペア:

[(1, 16978905), (3, 5659635), (5, 3395781), (9, 1886545), (15, 1131927), (45, 377309), (359, 47295), (1051, 16155), (1077, 15765), (1795, 9459), (3153, 5385), (3231, 5255)]