21357842

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 36267264

約数和(自身を除く): 14909422

約数列:

[1, 2, 11, 22, 43, 86, 107, 211, 214, 422, 473, 946, 1177, 2321, 2354, 4601, 4642, 9073, 9202, 18146, 22577, 45154, 50611, 99803, 101222, 199606, 248347, 496694, 970811, 1941622, 10678921, 21357842]

約数ペア:

[(1, 21357842), (2, 10678921), (11, 1941622), (22, 970811), (43, 496694), (86, 248347), (107, 199606), (211, 101222), (214, 99803), (422, 50611), (473, 45154), (946, 22577), (1177, 18146), (2321, 9202), (2354, 9073), (4601, 4642)]