1621669

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:252

約数の個数: 16

約数和(自身を含む): 1987200

約数和(自身を除く): 365531

約数列:

[1, 7, 19, 89, 133, 137, 623, 959, 1691, 2603, 11837, 12193, 18221, 85351, 231667, 1621669]

約数ペア:

[(1, 1621669), (7, 231667), (19, 85351), (89, 18221), (133, 12193), (137, 11837), (623, 2603), (959, 1691)]