21854410

素因数分解:

$2^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{4451}}^1$

素因数の和:4949

約数の個数: 16

約数和(自身を含む): 39426912

約数和(自身を除く): 17572502

約数列:

[1, 2, 5, 10, 491, 982, 2455, 4451, 4910, 8902, 22255, 44510, 2185441, 4370882, 10927205, 21854410]

約数ペア:

[(1, 21854410), (2, 10927205), (5, 4370882), (10, 2185441), (491, 44510), (982, 22255), (2455, 8902), (4451, 4910)]