248594913

素因数分解:

$3^4\times 7^1\times {\mathrm{438439}}^1$

素因数の和:438458

約数の個数: 20

約数和(自身を含む): 424409920

約数和(自身を除く): 175815007

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 438439, 1315317, 3069073, 3945951, 9207219, 11837853, 27621657, 35513559, 82864971, 248594913]

約数ペア:

[(1, 248594913), (3, 82864971), (7, 35513559), (9, 27621657), (21, 11837853), (27, 9207219), (63, 3945951), (81, 3069073), (189, 1315317), (567, 438439)]