216904919

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{3907}}^1$

素因数の和:4035

約数の個数: 24

約数和(自身を含む): 277999488

約数和(自身を除く): 61094569

約数列:

[1, 7, 11, 49, 77, 103, 539, 721, 1133, 3907, 5047, 7931, 27349, 42977, 55517, 191443, 300839, 402421, 2105873, 2816947, 4426631, 19718629, 30986417, 216904919]

約数ペア:

[(1, 216904919), (7, 30986417), (11, 19718629), (49, 4426631), (77, 2816947), (103, 2105873), (539, 402421), (721, 300839), (1133, 191443), (3907, 55517), (5047, 42977), (7931, 27349)]