21093908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{11149}}^1$

素因数の和:11207

約数の個数: 24

約数和(自身を含む): 41210400

約数和(自身を除く): 20116492

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 11149, 22298, 44596, 122639, 245278, 479407, 490556, 958814, 1917628, 5273477, 10546954, 21093908]

約数ペア:

[(1, 21093908), (2, 10546954), (4, 5273477), (11, 1917628), (22, 958814), (43, 490556), (44, 479407), (86, 245278), (172, 122639), (473, 44596), (946, 22298), (1892, 11149)]