21606280

素因数分解:

$2^3\times 5^1\times {\mathrm{540157}}^1$

素因数の和:540168

約数の個数: 16

約数和(自身を含む): 48614220

約数和(自身を除く): 27007940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 540157, 1080314, 2160628, 2700785, 4321256, 5401570, 10803140, 21606280]

約数ペア:

[(1, 21606280), (2, 10803140), (4, 5401570), (5, 4321256), (8, 2700785), (10, 2160628), (20, 1080314), (40, 540157)]