21750806

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{20177}}^1$

素因数の和:20204

約数の個数: 24

約数和(自身を含む): 41405256

約数和(自身を除く): 19654450

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 20177, 40354, 141239, 221947, 282478, 443894, 988673, 1553629, 1977346, 3107258, 10875403, 21750806]

約数ペア:

[(1, 21750806), (2, 10875403), (7, 3107258), (11, 1977346), (14, 1553629), (22, 988673), (49, 443894), (77, 282478), (98, 221947), (154, 141239), (539, 40354), (1078, 20177)]