20872088

素因数分解:

$2^3\times {\mathrm{409}}^1\times {\mathrm{6379}}^1$

素因数の和:6794

約数の個数: 16

約数和(自身を含む): 39237000

約数和(自身を除く): 18364912

約数列:

[1, 2, 4, 8, 409, 818, 1636, 3272, 6379, 12758, 25516, 51032, 2609011, 5218022, 10436044, 20872088]

約数ペア:

[(1, 20872088), (2, 10436044), (4, 5218022), (8, 2609011), (409, 51032), (818, 25516), (1636, 12758), (3272, 6379)]