1991693259

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1667}}^1$

素因数の和:1849

約数の個数: 64

約数和(自身を含む): 3314649600

約数和(自身を除く): 1322956341

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 137, 153, 171, 323, 411, 459, 513, 969, 1233, 1667, 2329, 2603, 2907, 3699, 5001, 6987, 7809, 8721, 15003, 20961, 23427, 28339, 31673, 44251, 45009, 62883, 70281, 85017, 95019, 132753, 228379, 255051, 285057, 398259, 538441, 685137, 765153, 855171, 1194777, 1615323, 2055411, 3882443, 4339201, 4845969, 6166233, 11647329, 13017603, 14537907, 34941987, 39052809, 73766417, 104825961, 117158427, 221299251, 663897753, 1991693259]

約数ペア:

[(1, 1991693259), (3, 663897753), (9, 221299251), (17, 117158427), (19, 104825961), (27, 73766417), (51, 39052809), (57, 34941987), (137, 14537907), (153, 13017603), (171, 11647329), (323, 6166233), (411, 4845969), (459, 4339201), (513, 3882443), (969, 2055411), (1233, 1615323), (1667, 1194777), (2329, 855171), (2603, 765153), (2907, 685137), (3699, 538441), (5001, 398259), (6987, 285057), (7809, 255051), (8721, 228379), (15003, 132753), (20961, 95019), (23427, 85017), (28339, 70281), (31673, 62883), (44251, 45009)]