20452257

素因数分解:

$3^4\times 7^2\times {\mathrm{5153}}^1$

素因数の和:5179

約数の個数: 30

約数和(自身を含む): 35547138

約数和(自身を除く): 15094881

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 5153, 15459, 36071, 46377, 108213, 139131, 252497, 324639, 417393, 757491, 973917, 2272473, 2921751, 6817419, 20452257]

約数ペア:

[(1, 20452257), (3, 6817419), (7, 2921751), (9, 2272473), (21, 973917), (27, 757491), (49, 417393), (63, 324639), (81, 252497), (147, 139131), (189, 108213), (441, 46377), (567, 36071), (1323, 15459), (3969, 5153)]