19729388

素因数分解:

$2^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{4729}}^1$

素因数の和:4889

約数の個数: 24

約数和(自身を含む): 39732000

約数和(自身を除く): 20002612

約数列:

[1, 2, 4, 7, 14, 28, 149, 298, 596, 1043, 2086, 4172, 4729, 9458, 18916, 33103, 66206, 132412, 704621, 1409242, 2818484, 4932347, 9864694, 19729388]

約数ペア:

[(1, 19729388), (2, 9864694), (4, 4932347), (7, 2818484), (14, 1409242), (28, 704621), (149, 132412), (298, 66206), (596, 33103), (1043, 18916), (2086, 9458), (4172, 4729)]