16990155

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1$

素因数の和:498

約数の個数: 80

約数和(自身を含む): 37566144

約数和(自身を除く): 20575989

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 63, 65, 81, 91, 105, 117, 135, 189, 195, 273, 315, 351, 405, 455, 461, 567, 585, 819, 945, 1053, 1365, 1383, 1755, 2305, 2457, 2835, 3227, 4095, 4149, 5265, 5993, 6915, 7371, 9681, 12285, 12447, 16135, 17979, 20745, 29043, 29965, 36855, 37341, 41951, 48405, 53937, 62235, 87129, 89895, 125853, 145215, 161811, 186705, 209755, 261387, 269685, 377559, 435645, 485433, 629265, 809055, 1132677, 1306935, 1887795, 2427165, 3398031, 5663385, 16990155]

約数ペア:

[(1, 16990155), (3, 5663385), (5, 3398031), (7, 2427165), (9, 1887795), (13, 1306935), (15, 1132677), (21, 809055), (27, 629265), (35, 485433), (39, 435645), (45, 377559), (63, 269685), (65, 261387), (81, 209755), (91, 186705), (105, 161811), (117, 145215), (135, 125853), (189, 89895), (195, 87129), (273, 62235), (315, 53937), (351, 48405), (405, 41951), (455, 37341), (461, 36855), (567, 29965), (585, 29043), (819, 20745), (945, 17979), (1053, 16135), (1365, 12447), (1383, 12285), (1755, 9681), (2305, 7371), (2457, 6915), (2835, 5993), (3227, 5265), (4095, 4149)]