1331394239

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{30427}}^1$

素因数の和:30507

約数の個数: 24

約数和(自身を含む): 1665020160

約数和(自身を除く): 333625921

約数列:

[1, 7, 19, 47, 49, 133, 329, 893, 931, 2303, 6251, 30427, 43757, 212989, 578113, 1430069, 1490923, 4046791, 10010483, 27171311, 28327537, 70073381, 190199177, 1331394239]

約数ペア:

[(1, 1331394239), (7, 190199177), (19, 70073381), (47, 28327537), (49, 27171311), (133, 10010483), (329, 4046791), (893, 1490923), (931, 1430069), (2303, 578113), (6251, 212989), (30427, 43757)]