18540564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{220721}}^1$

素因数の和:220735

約数の個数: 24

約数和(自身を含む): 49441728

約数和(自身を除く): 30901164

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 220721, 441442, 662163, 882884, 1324326, 1545047, 2648652, 3090094, 4635141, 6180188, 9270282, 18540564]

約数ペア:

[(1, 18540564), (2, 9270282), (3, 6180188), (4, 4635141), (6, 3090094), (7, 2648652), (12, 1545047), (14, 1324326), (21, 882884), (28, 662163), (42, 441442), (84, 220721)]