20405236

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2753}}^1$

素因数の和:2883

約数の個数: 24

約数和(自身を含む): 38170440

約数和(自身を除く): 17765204

約数列:

[1, 2, 4, 17, 34, 68, 109, 218, 436, 1853, 2753, 3706, 5506, 7412, 11012, 46801, 93602, 187204, 300077, 600154, 1200308, 5101309, 10202618, 20405236]

約数ペア:

[(1, 20405236), (2, 10202618), (4, 5101309), (17, 1200308), (34, 600154), (68, 300077), (109, 187204), (218, 93602), (436, 46801), (1853, 11012), (2753, 7412), (3706, 5506)]