20989192

素因数分解:

$2^3\times 7^1\times {\mathrm{374807}}^1$

素因数の和:374820

約数の個数: 16

約数和(自身を含む): 44976960

約数和(自身を除く): 23987768

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 374807, 749614, 1499228, 2623649, 2998456, 5247298, 10494596, 20989192]

約数ペア:

[(1, 20989192), (2, 10494596), (4, 5247298), (7, 2998456), (8, 2623649), (14, 1499228), (28, 749614), (56, 374807)]