2561181

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:174

約数の個数: 32

約数和(自身を含む): 4224000

約数和(自身を除く): 1662819

約数列:

[1, 3, 7, 19, 21, 49, 57, 131, 133, 147, 343, 393, 399, 917, 931, 1029, 2489, 2751, 2793, 6419, 6517, 7467, 17423, 19257, 19551, 44933, 52269, 121961, 134799, 365883, 853727, 2561181]

約数ペア:

[(1, 2561181), (3, 853727), (7, 365883), (19, 134799), (21, 121961), (49, 52269), (57, 44933), (131, 19551), (133, 19257), (147, 17423), (343, 7467), (393, 6517), (399, 6419), (917, 2793), (931, 2751), (1029, 2489)]