19660816

素因数分解:

$2^4\times 7^1\times {\mathrm{175543}}^1$

素因数の和:175558

約数の個数: 20

約数和(自身を含む): 43534912

約数和(自身を除く): 23874096

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 175543, 351086, 702172, 1228801, 1404344, 2457602, 2808688, 4915204, 9830408, 19660816]

約数ペア:

[(1, 19660816), (2, 9830408), (4, 4915204), (7, 2808688), (8, 2457602), (14, 1404344), (16, 1228801), (28, 702172), (56, 351086), (112, 175543)]