20475748

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2707}}^1$

素因数の和:2803

約数の個数: 24

約数和(自身を含む): 37608704

約数和(自身を除く): 17132956

約数列:

[1, 2, 4, 31, 61, 62, 122, 124, 244, 1891, 2707, 3782, 5414, 7564, 10828, 83917, 165127, 167834, 330254, 335668, 660508, 5118937, 10237874, 20475748]

約数ペア:

[(1, 20475748), (2, 10237874), (4, 5118937), (31, 660508), (61, 335668), (62, 330254), (122, 167834), (124, 165127), (244, 83917), (1891, 10828), (2707, 7564), (3782, 5414)]