20855429

素因数分解:

$7^3\times {\mathrm{41}}^1\times {\mathrm{1483}}^1$

素因数の和:1545

約数の個数: 16

約数和(自身を含む): 24931200

約数和(自身を除く): 4075771

約数列:

[1, 7, 41, 49, 287, 343, 1483, 2009, 10381, 14063, 60803, 72667, 425621, 508669, 2979347, 20855429]

約数ペア:

[(1, 20855429), (7, 2979347), (41, 508669), (49, 425621), (287, 72667), (343, 60803), (1483, 14063), (2009, 10381)]