20407576

素因数分解:

$2^3\times 7^1\times {\mathrm{373}}^1\times {\mathrm{977}}^1$

素因数の和:1363

約数の個数: 32

約数和(自身を含む): 43892640

約数和(自身を除く): 23485064

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 373, 746, 977, 1492, 1954, 2611, 2984, 3908, 5222, 6839, 7816, 10444, 13678, 20888, 27356, 54712, 364421, 728842, 1457684, 2550947, 2915368, 5101894, 10203788, 20407576]

約数ペア:

[(1, 20407576), (2, 10203788), (4, 5101894), (7, 2915368), (8, 2550947), (14, 1457684), (28, 728842), (56, 364421), (373, 54712), (746, 27356), (977, 20888), (1492, 13678), (1954, 10444), (2611, 7816), (2984, 6839), (3908, 5222)]