19999629

素因数分解:

$3^5\times {\mathrm{13}}^2\times {\mathrm{487}}^1$

素因数の和:528

約数の個数: 36

約数和(自身を含む): 32506656

約数和(自身を除く): 12507027

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 169, 243, 351, 487, 507, 1053, 1461, 1521, 3159, 4383, 4563, 6331, 13149, 13689, 18993, 39447, 41067, 56979, 82303, 118341, 170937, 246909, 512811, 740727, 1538433, 2222181, 6666543, 19999629]

約数ペア:

[(1, 19999629), (3, 6666543), (9, 2222181), (13, 1538433), (27, 740727), (39, 512811), (81, 246909), (117, 170937), (169, 118341), (243, 82303), (351, 56979), (487, 41067), (507, 39447), (1053, 18993), (1461, 13689), (1521, 13149), (3159, 6331), (4383, 4563)]