20090259

素因数分解:

$3^2\times 7^1\times {\mathrm{347}}^1\times {\mathrm{919}}^1$

素因数の和:1279

約数の個数: 24

約数和(自身を含む): 33296640

約数和(自身を除く): 13206381

約数列:

[1, 3, 7, 9, 21, 63, 347, 919, 1041, 2429, 2757, 3123, 6433, 7287, 8271, 19299, 21861, 57897, 318893, 956679, 2232251, 2870037, 6696753, 20090259]

約数ペア:

[(1, 20090259), (3, 6696753), (7, 2870037), (9, 2232251), (21, 956679), (63, 318893), (347, 57897), (919, 21861), (1041, 19299), (2429, 8271), (2757, 7287), (3123, 6433)]