20858344

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1531}}^1$

素因数の和:1681

約数の個数: 32

約数和(自身を含む): 42467040

約数和(自身を除く): 21608696

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 131, 262, 524, 1048, 1531, 1703, 3062, 3406, 6124, 6812, 12248, 13624, 19903, 39806, 79612, 159224, 200561, 401122, 802244, 1604488, 2607293, 5214586, 10429172, 20858344]

約数ペア:

[(1, 20858344), (2, 10429172), (4, 5214586), (8, 2607293), (13, 1604488), (26, 802244), (52, 401122), (104, 200561), (131, 159224), (262, 79612), (524, 39806), (1048, 19903), (1531, 13624), (1703, 12248), (3062, 6812), (3406, 6124)]