13418503

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 32

約数和(自身を含む): 17280000

約数和(自身を除く): 3861497

約数列:

[1, 7, 19, 29, 49, 71, 133, 203, 343, 497, 551, 931, 1349, 1421, 2059, 3479, 3857, 6517, 9443, 9947, 14413, 24353, 26999, 39121, 66101, 100891, 188993, 273847, 462707, 706237, 1916929, 13418503]

約数ペア:

[(1, 13418503), (7, 1916929), (19, 706237), (29, 462707), (49, 273847), (71, 188993), (133, 100891), (203, 66101), (343, 39121), (497, 26999), (551, 24353), (931, 14413), (1349, 9947), (1421, 9443), (2059, 6517), (3479, 3857)]