28421855

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73823}}^1$

素因数の和:73846

約数の個数: 16

約数和(自身を含む): 42522624

約数和(自身を除く): 14100769

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 73823, 369115, 516761, 812053, 2583805, 4060265, 5684371, 28421855]

約数ペア:

[(1, 28421855), (5, 5684371), (7, 4060265), (11, 2583805), (35, 812053), (55, 516761), (77, 369115), (385, 73823)]