20538344

素因数分解:

$2^3\times {\mathrm{409}}^1\times {\mathrm{6277}}^1$

素因数の和:6692

約数の個数: 16

約数和(自身を含む): 38609700

約数和(自身を除く): 18071356

約数列:

[1, 2, 4, 8, 409, 818, 1636, 3272, 6277, 12554, 25108, 50216, 2567293, 5134586, 10269172, 20538344]

約数ペア:

[(1, 20538344), (2, 10269172), (4, 5134586), (8, 2567293), (409, 50216), (818, 25108), (1636, 12554), (3272, 6277)]