20293893

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1279}}^1$

素因数の和:1369

約数の個数: 24

約数和(自身を含む): 30750720

約数和(自身を除く): 10456827

約数列:

[1, 3, 9, 41, 43, 123, 129, 369, 387, 1279, 1763, 3837, 5289, 11511, 15867, 52439, 54997, 157317, 164991, 471951, 494973, 2254877, 6764631, 20293893]

約数ペア:

[(1, 20293893), (3, 6764631), (9, 2254877), (41, 494973), (43, 471951), (123, 164991), (129, 157317), (369, 54997), (387, 52439), (1279, 15867), (1763, 11511), (3837, 5289)]