21071169

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5483}}^1$

素因数の和:5557

約数の個数: 24

約数和(自身を含む): 35360832

約数和(自身を除く): 14289663

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 5483, 16449, 38381, 49347, 115143, 334463, 345429, 1003389, 2341241, 3010167, 7023723, 21071169]

約数ペア:

[(1, 21071169), (3, 7023723), (7, 3010167), (9, 2341241), (21, 1003389), (61, 345429), (63, 334463), (183, 115143), (427, 49347), (549, 38381), (1281, 16449), (3843, 5483)]