79891371

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2153}}^1$

素因数の和:2216

約数の個数: 48

約数和(自身を含む): 143370240

約数和(自身を除く): 63478869

約数列:

[1, 3, 7, 9, 19, 21, 31, 57, 63, 93, 133, 171, 217, 279, 399, 589, 651, 1197, 1767, 1953, 2153, 4123, 5301, 6459, 12369, 15071, 19377, 37107, 40907, 45213, 66743, 122721, 135639, 200229, 286349, 368163, 467201, 600687, 859047, 1268117, 1401603, 2577141, 3804351, 4204809, 8876819, 11413053, 26630457, 79891371]

約数ペア:

[(1, 79891371), (3, 26630457), (7, 11413053), (9, 8876819), (19, 4204809), (21, 3804351), (31, 2577141), (57, 1401603), (63, 1268117), (93, 859047), (133, 600687), (171, 467201), (217, 368163), (279, 286349), (399, 200229), (589, 135639), (651, 122721), (1197, 66743), (1767, 45213), (1953, 40907), (2153, 37107), (4123, 19377), (5301, 15071), (6459, 12369)]