20742524

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{2393}}^1$

素因数の和:2605

約数の個数: 24

約数和(自身を含む): 39817008

約数和(自身を除く): 19074484

約数列:

[1, 2, 4, 11, 22, 44, 197, 394, 788, 2167, 2393, 4334, 4786, 8668, 9572, 26323, 52646, 105292, 471421, 942842, 1885684, 5185631, 10371262, 20742524]

約数ペア:

[(1, 20742524), (2, 10371262), (4, 5185631), (11, 1885684), (22, 942842), (44, 471421), (197, 105292), (394, 52646), (788, 26323), (2167, 9572), (2393, 8668), (4334, 4786)]