18417987

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{593}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 33359040

約数和(自身を除く): 14941053

約数列:

[1, 3, 7, 9, 17, 21, 29, 51, 63, 87, 119, 153, 203, 261, 357, 493, 593, 609, 1071, 1479, 1779, 1827, 3451, 4151, 4437, 5337, 10081, 10353, 12453, 17197, 30243, 31059, 37359, 51591, 70567, 90729, 120379, 154773, 211701, 292349, 361137, 635103, 877047, 1083411, 2046443, 2631141, 6139329, 18417987]

約数ペア:

[(1, 18417987), (3, 6139329), (7, 2631141), (9, 2046443), (17, 1083411), (21, 877047), (29, 635103), (51, 361137), (63, 292349), (87, 211701), (119, 154773), (153, 120379), (203, 90729), (261, 70567), (357, 51591), (493, 37359), (593, 31059), (609, 30243), (1071, 17197), (1479, 12453), (1779, 10353), (1827, 10081), (3451, 5337), (4151, 4437)]