21506463

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1993}}^1$

素因数の和:2119

約数の個数: 24

約数和(自身を含む): 34217040

約数和(自身を除く): 12710577

約数列:

[1, 3, 9, 11, 33, 99, 109, 327, 981, 1199, 1993, 3597, 5979, 10791, 17937, 21923, 65769, 197307, 217237, 651711, 1955133, 2389607, 7168821, 21506463]

約数ペア:

[(1, 21506463), (3, 7168821), (9, 2389607), (11, 1955133), (33, 651711), (99, 217237), (109, 197307), (327, 65769), (981, 21923), (1199, 17937), (1993, 10791), (3597, 5979)]