18678411

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{359}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 10351989

約数列:

[1, 3, 9, 27, 41, 47, 123, 141, 359, 369, 423, 1077, 1107, 1269, 1927, 3231, 5781, 9693, 14719, 16873, 17343, 44157, 50619, 52029, 132471, 151857, 397413, 455571, 691793, 2075379, 6226137, 18678411]

約数ペア:

[(1, 18678411), (3, 6226137), (9, 2075379), (27, 691793), (41, 455571), (47, 397413), (123, 151857), (141, 132471), (359, 52029), (369, 50619), (423, 44157), (1077, 17343), (1107, 16873), (1269, 14719), (1927, 9693), (3231, 5781)]