218071763

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{3361}}^1$

素因数の和:3435

約数の個数: 32

約数和(自身を含む): 289185792

約数和(自身を除く): 71114029

約数列:

[1, 7, 13, 23, 31, 91, 161, 217, 299, 403, 713, 2093, 2821, 3361, 4991, 9269, 23527, 43693, 64883, 77303, 104191, 305851, 541121, 729337, 1004939, 1354483, 2396393, 7034573, 9481381, 16774751, 31153109, 218071763]

約数ペア:

[(1, 218071763), (7, 31153109), (13, 16774751), (23, 9481381), (31, 7034573), (91, 2396393), (161, 1354483), (217, 1004939), (299, 729337), (403, 541121), (713, 305851), (2093, 104191), (2821, 77303), (3361, 64883), (4991, 43693), (9269, 23527)]