20293497

素因数分解:

$3^4\times 7^2\times {\mathrm{5113}}^1$

素因数の和:5139

約数の個数: 30

約数和(自身を含む): 35271258

約数和(自身を除く): 14977761

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 5113, 15339, 35791, 46017, 107373, 138051, 250537, 322119, 414153, 751611, 966357, 2254833, 2899071, 6764499, 20293497]

約数ペア:

[(1, 20293497), (3, 6764499), (7, 2899071), (9, 2254833), (21, 966357), (27, 751611), (49, 414153), (63, 322119), (81, 250537), (147, 138051), (189, 107373), (441, 46017), (567, 35791), (1323, 15339), (3969, 5113)]