18513872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89009}}^1$

素因数の和:89030

約数の個数: 20

約数和(自身を含む): 38630340

約数和(自身を除く): 20116468

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89009, 178018, 356036, 712072, 1157117, 1424144, 2314234, 4628468, 9256936, 18513872]

約数ペア:

[(1, 18513872), (2, 9256936), (4, 4628468), (8, 2314234), (13, 1424144), (16, 1157117), (26, 712072), (52, 356036), (104, 178018), (208, 89009)]