21086860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{45841}}^1$

素因数の和:45873

約数の個数: 24

約数和(自身を含む): 46208736

約数和(自身を除く): 25121876

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 45841, 91682, 183364, 229205, 458410, 916820, 1054343, 2108686, 4217372, 5271715, 10543430, 21086860]

約数ペア:

[(1, 21086860), (2, 10543430), (4, 5271715), (5, 4217372), (10, 2108686), (20, 1054343), (23, 916820), (46, 458410), (92, 229205), (115, 183364), (230, 91682), (460, 45841)]