21505236472

素因数分解:

$2^3\times {\mathrm{211}}^1\times {\mathrm{2351}}^1\times {\mathrm{5419}}^1$

素因数の和:7987

約数の個数: 32

約数和(自身を含む): 40538131200

約数和(自身を除く): 19032894728

約数列:

[1, 2, 4, 8, 211, 422, 844, 1688, 2351, 4702, 5419, 9404, 10838, 18808, 21676, 43352, 496061, 992122, 1143409, 1984244, 2286818, 3968488, 4573636, 9147272, 12740069, 25480138, 50960276, 101920552, 2688154559, 5376309118, 10752618236, 21505236472]

約数ペア:

[(1, 21505236472), (2, 10752618236), (4, 5376309118), (8, 2688154559), (211, 101920552), (422, 50960276), (844, 25480138), (1688, 12740069), (2351, 9147272), (4702, 4573636), (5419, 3968488), (9404, 2286818), (10838, 1984244), (18808, 1143409), (21676, 992122), (43352, 496061)]