20861128

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{63601}}^1$

素因数の和:63648

約数の個数: 16

約数和(自身を含む): 40069260

約数和(自身を除く): 19208132

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 63601, 127202, 254404, 508808, 2607641, 5215282, 10430564, 20861128]

約数ペア:

[(1, 20861128), (2, 10430564), (4, 5215282), (8, 2607641), (41, 508808), (82, 254404), (164, 127202), (328, 63601)]