15661779819

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{98873}}^1$

素因数の和:99299

約数の個数: 32

約数和(自身を含む): 25185185280

約数和(自身を除く): 9523405461

約数列:

[1, 3, 7, 19, 21, 57, 133, 397, 399, 1191, 2779, 7543, 8337, 22629, 52801, 98873, 158403, 296619, 692111, 1878587, 2076333, 5635761, 13150109, 39252581, 39450327, 117757743, 274768067, 745799039, 824304201, 2237397117, 5220593273, 15661779819]

約数ペア:

[(1, 15661779819), (3, 5220593273), (7, 2237397117), (19, 824304201), (21, 745799039), (57, 274768067), (133, 117757743), (397, 39450327), (399, 39252581), (1191, 13150109), (2779, 5635761), (7543, 2076333), (8337, 1878587), (22629, 692111), (52801, 296619), (98873, 158403)]