19945048

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1777}}^1$

素因数の和:1867

約数の個数: 32

約数和(自身を含む): 39684960

約数和(自身を除く): 19739912

約数列:

[1, 2, 4, 8, 23, 46, 61, 92, 122, 184, 244, 488, 1403, 1777, 2806, 3554, 5612, 7108, 11224, 14216, 40871, 81742, 108397, 163484, 216794, 326968, 433588, 867176, 2493131, 4986262, 9972524, 19945048]

約数ペア:

[(1, 19945048), (2, 9972524), (4, 4986262), (8, 2493131), (23, 867176), (46, 433588), (61, 326968), (92, 216794), (122, 163484), (184, 108397), (244, 81742), (488, 40871), (1403, 14216), (1777, 11224), (2806, 7108), (3554, 5612)]