21088930

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{91691}}^1$

素因数の和:91721

約数の個数: 16

約数和(自身を含む): 39610944

約数和(自身を除く): 18522014

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 91691, 183382, 458455, 916910, 2108893, 4217786, 10544465, 21088930]

約数ペア:

[(1, 21088930), (2, 10544465), (5, 4217786), (10, 2108893), (23, 916910), (46, 458455), (115, 183382), (230, 91691)]