20067021

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:120

約数の個数: 80

約数和(自身を含む): 36590400

約数和(自身を除く): 16523379

約数列:

[1, 3, 9, 13, 17, 19, 27, 39, 51, 57, 59, 81, 117, 153, 171, 177, 221, 247, 323, 351, 459, 513, 531, 663, 741, 767, 969, 1003, 1053, 1121, 1377, 1539, 1593, 1989, 2223, 2301, 2907, 3009, 3363, 4199, 4779, 5967, 6669, 6903, 8721, 9027, 10089, 12597, 13039, 14573, 17901, 19057, 20007, 20709, 26163, 27081, 30267, 37791, 39117, 43719, 57171, 62127, 81243, 90801, 113373, 117351, 131157, 171513, 247741, 340119, 352053, 393471, 514539, 743223, 1056159, 1180413, 1543617, 2229669, 6689007, 20067021]

約数ペア:

[(1, 20067021), (3, 6689007), (9, 2229669), (13, 1543617), (17, 1180413), (19, 1056159), (27, 743223), (39, 514539), (51, 393471), (57, 352053), (59, 340119), (81, 247741), (117, 171513), (153, 131157), (171, 117351), (177, 113373), (221, 90801), (247, 81243), (323, 62127), (351, 57171), (459, 43719), (513, 39117), (531, 37791), (663, 30267), (741, 27081), (767, 26163), (969, 20709), (1003, 20007), (1053, 19057), (1121, 17901), (1377, 14573), (1539, 13039), (1593, 12597), (1989, 10089), (2223, 9027), (2301, 8721), (2907, 6903), (3009, 6669), (3363, 5967), (4199, 4779)]