16781193

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 30831840

約数和(自身を除く): 14050647

約数列:

[1, 3, 9, 11, 13, 17, 33, 39, 51, 59, 99, 117, 143, 153, 169, 177, 187, 221, 429, 507, 531, 561, 649, 663, 767, 1003, 1287, 1521, 1683, 1859, 1947, 1989, 2301, 2431, 2873, 3009, 5577, 5841, 6903, 7293, 8437, 8619, 9027, 9971, 11033, 13039, 16731, 21879, 25311, 25857, 29913, 31603, 33099, 39117, 75933, 89739, 94809, 99297, 109681, 117351, 143429, 169507, 284427, 329043, 430287, 508521, 987129, 1290861, 1525563, 1864577, 5593731, 16781193]

約数ペア:

[(1, 16781193), (3, 5593731), (9, 1864577), (11, 1525563), (13, 1290861), (17, 987129), (33, 508521), (39, 430287), (51, 329043), (59, 284427), (99, 169507), (117, 143429), (143, 117351), (153, 109681), (169, 99297), (177, 94809), (187, 89739), (221, 75933), (429, 39117), (507, 33099), (531, 31603), (561, 29913), (649, 25857), (663, 25311), (767, 21879), (1003, 16731), (1287, 13039), (1521, 11033), (1683, 9971), (1859, 9027), (1947, 8619), (1989, 8437), (2301, 7293), (2431, 6903), (2873, 5841), (3009, 5577)]