21266938

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{701}}^1$

素因数の和:918

約数の個数: 32

約数和(自身を含む): 40030848

約数和(自身を除く): 18763910

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 197, 394, 701, 1379, 1402, 2167, 2758, 4334, 4907, 7711, 9814, 15169, 15422, 30338, 53977, 107954, 138097, 276194, 966679, 1519067, 1933358, 3038134, 10633469, 21266938]

約数ペア:

[(1, 21266938), (2, 10633469), (7, 3038134), (11, 1933358), (14, 1519067), (22, 966679), (77, 276194), (154, 138097), (197, 107954), (394, 53977), (701, 30338), (1379, 15422), (1402, 15169), (2167, 9814), (2758, 7711), (4334, 4907)]