51657921

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{19069}}^1$

素因数の和:19125

約数の個数: 24

約数和(自身を含む): 87264320

約数和(自身を除く): 35606399

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 19069, 57207, 133483, 171621, 400449, 819967, 1201347, 2459901, 5739769, 7379703, 17219307, 51657921]

約数ペア:

[(1, 51657921), (3, 17219307), (7, 7379703), (9, 5739769), (21, 2459901), (43, 1201347), (63, 819967), (129, 400449), (301, 171621), (387, 133483), (903, 57207), (2709, 19069)]