18889738

素因数分解:

$2^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{4871}}^1$

素因数の和:5157

約数の個数: 16

約数和(自身を含む): 32505984

約数和(自身を除く): 13616246

約数列:

[1, 2, 7, 14, 277, 554, 1939, 3878, 4871, 9742, 34097, 68194, 1349267, 2698534, 9444869, 18889738]

約数ペア:

[(1, 18889738), (2, 9444869), (7, 2698534), (14, 1349267), (277, 68194), (554, 34097), (1939, 9742), (3878, 4871)]