20511477

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6143}}^1$

素因数の和:6209

約数の個数: 24

約数和(自身を含む): 34504704

約数和(自身を除く): 13993227

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 6143, 18429, 43001, 55287, 129003, 325579, 387009, 976737, 2279053, 2930211, 6837159, 20511477]

約数ペア:

[(1, 20511477), (3, 6837159), (7, 2930211), (9, 2279053), (21, 976737), (53, 387009), (63, 325579), (159, 129003), (371, 55287), (477, 43001), (1113, 18429), (3339, 6143)]