21025796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{11113}}^1$

素因数の和:11171

約数の個数: 24

約数和(自身を含む): 41077344

約数和(自身を除く): 20051548

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 11113, 22226, 44452, 122243, 244486, 477859, 488972, 955718, 1911436, 5256449, 10512898, 21025796]

約数ペア:

[(1, 21025796), (2, 10512898), (4, 5256449), (11, 1911436), (22, 955718), (43, 488972), (44, 477859), (86, 244486), (172, 122243), (473, 44452), (946, 22226), (1892, 11113)]