20925097263

素因数分解:

$3^2\times 7^1\times {\mathrm{409}}^1\times {\mathrm{457}}^1\times {\mathrm{1777}}^1$

素因数の和:2656

約数の個数: 48

約数和(自身を含む): 34722775360

約数和(自身を除く): 13797678097

約数列:

[1, 3, 7, 9, 21, 63, 409, 457, 1227, 1371, 1777, 2863, 3199, 3681, 4113, 5331, 8589, 9597, 12439, 15993, 25767, 28791, 37317, 111951, 186913, 560739, 726793, 812089, 1308391, 1682217, 2180379, 2436267, 3925173, 5087551, 5684623, 6541137, 7308801, 11775519, 15262653, 17053869, 45787959, 51161607, 332144401, 996433203, 2325010807, 2989299609, 6975032421, 20925097263]

約数ペア:

[(1, 20925097263), (3, 6975032421), (7, 2989299609), (9, 2325010807), (21, 996433203), (63, 332144401), (409, 51161607), (457, 45787959), (1227, 17053869), (1371, 15262653), (1777, 11775519), (2863, 7308801), (3199, 6541137), (3681, 5684623), (4113, 5087551), (5331, 3925173), (8589, 2436267), (9597, 2180379), (12439, 1682217), (15993, 1308391), (25767, 812089), (28791, 726793), (37317, 560739), (111951, 186913)]