205386447

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{11971}}^1$

素因数の和:12043

約数の個数: 32

約数和(自身を含む): 337131520

約数和(自身を除く): 131745073

約数列:

[1, 3, 7, 19, 21, 43, 57, 129, 133, 301, 399, 817, 903, 2451, 5719, 11971, 17157, 35913, 83797, 227449, 251391, 514753, 682347, 1544259, 1592143, 3603271, 4776429, 9780307, 10809813, 29340921, 68462149, 205386447]

約数ペア:

[(1, 205386447), (3, 68462149), (7, 29340921), (19, 10809813), (21, 9780307), (43, 4776429), (57, 3603271), (129, 1592143), (133, 1544259), (301, 682347), (399, 514753), (817, 251391), (903, 227449), (2451, 83797), (5719, 35913), (11971, 17157)]