20087739

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4759}}^1$

素因数の和:4839

約数の個数: 24

約数和(自身を含む): 33662720

約数和(自身を除く): 13574981

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 4759, 14277, 33313, 42831, 99939, 299817, 318853, 956559, 2231971, 2869677, 6695913, 20087739]

約数ペア:

[(1, 20087739), (3, 6695913), (7, 2869677), (9, 2231971), (21, 956559), (63, 318853), (67, 299817), (201, 99939), (469, 42831), (603, 33313), (1407, 14277), (4221, 4759)]