20988152

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{39157}}^1$

素因数の和:39230

約数の個数: 16

約数和(自身を含む): 39941160

約数和(自身を除く): 18953008

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 39157, 78314, 156628, 313256, 2623519, 5247038, 10494076, 20988152]

約数ペア:

[(1, 20988152), (2, 10494076), (4, 5247038), (8, 2623519), (67, 313256), (134, 156628), (268, 78314), (536, 39157)]