19968156945

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1301281}}^1$

素因数の和:1301334

約数の個数: 48

約数和(自身を含む): 38975998464

約数和(自身を除く): 19007841519

約数列:

[1, 3, 5, 9, 11, 15, 31, 33, 45, 55, 93, 99, 155, 165, 279, 341, 465, 495, 1023, 1395, 1705, 3069, 5115, 15345, 1301281, 3903843, 6506405, 11711529, 14314091, 19519215, 40339711, 42942273, 58557645, 71570455, 121019133, 128826819, 201698555, 214711365, 363057399, 443736821, 605095665, 644134095, 1331210463, 1815286995, 2218684105, 3993631389, 6656052315, 19968156945]

約数ペア:

[(1, 19968156945), (3, 6656052315), (5, 3993631389), (9, 2218684105), (11, 1815286995), (15, 1331210463), (31, 644134095), (33, 605095665), (45, 443736821), (55, 363057399), (93, 214711365), (99, 201698555), (155, 128826819), (165, 121019133), (279, 71570455), (341, 58557645), (465, 42942273), (495, 40339711), (1023, 19519215), (1395, 14314091), (1705, 11711529), (3069, 6506405), (5115, 3903843), (15345, 1301281)]