18889834

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{971}}^1$

素因数の和:1181

約数の個数: 16

約数和(自身を含む): 28973376

約数和(自身を除く): 10083542

約数列:

[1, 2, 71, 137, 142, 274, 971, 1942, 9727, 19454, 68941, 133027, 137882, 266054, 9444917, 18889834]

約数ペア:

[(1, 18889834), (2, 9444917), (71, 266054), (137, 137882), (142, 133027), (274, 68941), (971, 19454), (1942, 9727)]