21145164

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^2\times {\mathrm{953}}^1$

素因数の和:1046

約数の個数: 36

約数和(自身を含む): 50565816

約数和(自身を除く): 29420652

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 953, 1849, 1906, 2859, 3698, 3812, 5547, 5718, 7396, 11094, 11436, 22188, 40979, 81958, 122937, 163916, 245874, 491748, 1762097, 3524194, 5286291, 7048388, 10572582, 21145164]

約数ペア:

[(1, 21145164), (2, 10572582), (3, 7048388), (4, 5286291), (6, 3524194), (12, 1762097), (43, 491748), (86, 245874), (129, 163916), (172, 122937), (258, 81958), (516, 40979), (953, 22188), (1849, 11436), (1906, 11094), (2859, 7396), (3698, 5718), (3812, 5547)]