19968004

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{6311}}^1$

素因数の和:6435

約数の個数: 24

約数和(自身を含む): 40295808

約数和(自身を除く): 20327804

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 6311, 12622, 25244, 44177, 88354, 176708, 713143, 1426286, 2852572, 4992001, 9984002, 19968004]

約数ペア:

[(1, 19968004), (2, 9984002), (4, 4992001), (7, 2852572), (14, 1426286), (28, 713143), (113, 176708), (226, 88354), (452, 44177), (791, 25244), (1582, 12622), (3164, 6311)]