18945927

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{701}}^1$

素因数の和:741

約数の個数: 64

約数和(自身を含む): 37739520

約数和(自身を除く): 18793593

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 39, 63, 77, 91, 99, 117, 143, 189, 231, 273, 297, 351, 429, 693, 701, 819, 1001, 1287, 2079, 2103, 2457, 3003, 3861, 4907, 6309, 7711, 9009, 9113, 14721, 18927, 23133, 27027, 27339, 44163, 53977, 63791, 69399, 82017, 100243, 132489, 161931, 191373, 208197, 246051, 300729, 485793, 574119, 701701, 902187, 1457379, 1722357, 2105103, 2706561, 6315309, 18945927]

約数ペア:

[(1, 18945927), (3, 6315309), (7, 2706561), (9, 2105103), (11, 1722357), (13, 1457379), (21, 902187), (27, 701701), (33, 574119), (39, 485793), (63, 300729), (77, 246051), (91, 208197), (99, 191373), (117, 161931), (143, 132489), (189, 100243), (231, 82017), (273, 69399), (297, 63791), (351, 53977), (429, 44163), (693, 27339), (701, 27027), (819, 23133), (1001, 18927), (1287, 14721), (2079, 9113), (2103, 9009), (2457, 7711), (3003, 6309), (3861, 4907)]