20512168

素因数分解:

$2^3\times {\mathrm{409}}^1\times {\mathrm{6269}}^1$

素因数の和:6684

約数の個数: 16

約数和(自身を含む): 38560500

約数和(自身を除く): 18048332

約数列:

[1, 2, 4, 8, 409, 818, 1636, 3272, 6269, 12538, 25076, 50152, 2564021, 5128042, 10256084, 20512168]

約数ペア:

[(1, 20512168), (2, 10256084), (4, 5128042), (8, 2564021), (409, 50152), (818, 25076), (1636, 12538), (3272, 6269)]