20557638

素因数分解:

$2^1\times 3^4\times {\mathrm{113}}^1\times {\mathrm{1123}}^1$

素因数の和:1250

約数の個数: 40

約数和(自身を含む): 46513368

約数和(自身を除く): 25955730

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 113, 162, 226, 339, 678, 1017, 1123, 2034, 2246, 3051, 3369, 6102, 6738, 9153, 10107, 18306, 20214, 30321, 60642, 90963, 126899, 181926, 253798, 380697, 761394, 1142091, 2284182, 3426273, 6852546, 10278819, 20557638]

約数ペア:

[(1, 20557638), (2, 10278819), (3, 6852546), (6, 3426273), (9, 2284182), (18, 1142091), (27, 761394), (54, 380697), (81, 253798), (113, 181926), (162, 126899), (226, 90963), (339, 60642), (678, 30321), (1017, 20214), (1123, 18306), (2034, 10107), (2246, 9153), (3051, 6738), (3369, 6102)]