21817367560

素因数分解:

$2^3\times 5^1\times {\mathrm{545434189}}^1$

素因数の和:545434200

約数の個数: 16

約数和(自身を含む): 49089077100

約数和(自身を除く): 27271709540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 545434189, 1090868378, 2181736756, 2727170945, 4363473512, 5454341890, 10908683780, 21817367560]

約数ペア:

[(1, 21817367560), (2, 10908683780), (4, 5454341890), (5, 4363473512), (8, 2727170945), (10, 2181736756), (20, 1090868378), (40, 545434189)]