19802564

素因数分解:

$2^2\times {\mathrm{73}}^2\times {\mathrm{929}}^1$

素因数の和:1079

約数の個数: 18

約数和(自身を含む): 35173530

約数和(自身を除く): 15370966

約数列:

[1, 2, 4, 73, 146, 292, 929, 1858, 3716, 5329, 10658, 21316, 67817, 135634, 271268, 4950641, 9901282, 19802564]

約数ペア:

[(1, 19802564), (2, 9901282), (4, 4950641), (73, 271268), (146, 135634), (292, 67817), (929, 21316), (1858, 10658), (3716, 5329)]