21405266806

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{743}}^1\times {\mathrm{187073}}^1$

素因数の和:187836

約数の個数: 32

約数和(自身を含む): 40084720128

約数和(自身を除く): 18679453322

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 743, 1486, 5201, 8173, 10402, 16346, 57211, 114422, 187073, 374146, 1309511, 2057803, 2619022, 4115606, 14404621, 28809242, 138995239, 277990478, 972966673, 1528947629, 1945933346, 3057895258, 10702633403, 21405266806]

約数ペア:

[(1, 21405266806), (2, 10702633403), (7, 3057895258), (11, 1945933346), (14, 1528947629), (22, 972966673), (77, 277990478), (154, 138995239), (743, 28809242), (1486, 14404621), (5201, 4115606), (8173, 2619022), (10402, 2057803), (16346, 1309511), (57211, 374146), (114422, 187073)]