13289283

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2971}}^1$

素因数の和:3055

約数の個数: 24

約数和(自身を含む): 22254336

約数和(自身を除く): 8965053

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 2971, 4473, 8913, 20797, 26739, 62391, 187173, 210941, 632823, 1476587, 1898469, 4429761, 13289283]

約数ペア:

[(1, 13289283), (3, 4429761), (7, 1898469), (9, 1476587), (21, 632823), (63, 210941), (71, 187173), (213, 62391), (497, 26739), (639, 20797), (1491, 8913), (2971, 4473)]