18959283

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 33745920

約数和(自身を除く): 14786637

約数列:

[1, 3, 7, 9, 19, 21, 47, 57, 63, 133, 141, 171, 329, 337, 399, 423, 893, 987, 1011, 1197, 2359, 2679, 2961, 3033, 6251, 6403, 7077, 8037, 15839, 18753, 19209, 21231, 44821, 47517, 56259, 57627, 110873, 134463, 142551, 300941, 332619, 403389, 902823, 997857, 2106587, 2708469, 6319761, 18959283]

約数ペア:

[(1, 18959283), (3, 6319761), (7, 2708469), (9, 2106587), (19, 997857), (21, 902823), (47, 403389), (57, 332619), (63, 300941), (133, 142551), (141, 134463), (171, 110873), (329, 57627), (337, 56259), (399, 47517), (423, 44821), (893, 21231), (987, 19209), (1011, 18753), (1197, 15839), (2359, 8037), (2679, 7077), (2961, 6403), (3033, 6251)]