20641278

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{6221}}^1$

素因数の和:6312

約数の個数: 32

約数和(自身を含む): 47784960

約数和(自身を除く): 27143682

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 79, 158, 237, 474, 553, 1106, 1659, 3318, 6221, 12442, 18663, 37326, 43547, 87094, 130641, 261282, 491459, 982918, 1474377, 2948754, 3440213, 6880426, 10320639, 20641278]

約数ペア:

[(1, 20641278), (2, 10320639), (3, 6880426), (6, 3440213), (7, 2948754), (14, 1474377), (21, 982918), (42, 491459), (79, 261282), (158, 130641), (237, 87094), (474, 43547), (553, 37326), (1106, 18663), (1659, 12442), (3318, 6221)]