20764491

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 10685109

約数列:

[1, 3, 11, 33, 41, 103, 123, 149, 309, 447, 451, 1133, 1353, 1639, 3399, 4223, 4917, 6109, 12669, 15347, 18327, 46041, 46453, 67199, 139359, 168817, 201597, 506451, 629227, 1887681, 6921497, 20764491]

約数ペア:

[(1, 20764491), (3, 6921497), (11, 1887681), (33, 629227), (41, 506451), (103, 201597), (123, 168817), (149, 139359), (309, 67199), (447, 46453), (451, 46041), (1133, 18327), (1353, 15347), (1639, 12669), (3399, 6109), (4223, 4917)]