18804977541

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{739}}^1\times {\mathrm{7621}}^1$

素因数の和:8426

約数の個数: 48

約数和(自身を含む): 31675812480

約数和(自身を除く): 12870834939

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 739, 1113, 2217, 3339, 5173, 6651, 7621, 15519, 22863, 39167, 46557, 53347, 68589, 117501, 160041, 274169, 352503, 403913, 480123, 822507, 1211739, 2467521, 2827391, 3635217, 5631919, 8482173, 16895757, 25446519, 39423433, 50687271, 118270299, 298491707, 354810897, 895475121, 2089441949, 2686425363, 6268325847, 18804977541]

約数ペア:

[(1, 18804977541), (3, 6268325847), (7, 2686425363), (9, 2089441949), (21, 895475121), (53, 354810897), (63, 298491707), (159, 118270299), (371, 50687271), (477, 39423433), (739, 25446519), (1113, 16895757), (2217, 8482173), (3339, 5631919), (5173, 3635217), (6651, 2827391), (7621, 2467521), (15519, 1211739), (22863, 822507), (39167, 480123), (46557, 403913), (53347, 352503), (68589, 274169), (117501, 160041)]