16668315

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:169

約数の個数: 64

約数和(自身を含む): 31518720

約数和(自身を除く): 14850405

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 47, 71, 111, 135, 141, 185, 213, 235, 333, 355, 423, 555, 639, 705, 999, 1065, 1269, 1665, 1739, 1917, 2115, 2627, 3195, 3337, 4995, 5217, 6345, 7881, 8695, 9585, 10011, 13135, 15651, 16685, 23643, 26085, 30033, 39405, 46953, 50055, 70929, 78255, 90099, 118215, 123469, 150165, 234765, 354645, 370407, 450495, 617345, 1111221, 1852035, 3333663, 5556105, 16668315]

約数ペア:

[(1, 16668315), (3, 5556105), (5, 3333663), (9, 1852035), (15, 1111221), (27, 617345), (37, 450495), (45, 370407), (47, 354645), (71, 234765), (111, 150165), (135, 123469), (141, 118215), (185, 90099), (213, 78255), (235, 70929), (333, 50055), (355, 46953), (423, 39405), (555, 30033), (639, 26085), (705, 23643), (999, 16685), (1065, 15651), (1269, 13135), (1665, 10011), (1739, 9585), (1917, 8695), (2115, 7881), (2627, 6345), (3195, 5217), (3337, 4995)]