12812247

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4327}}^1$

素因数の和:4387

約数の個数: 24

約数和(自身を含む): 21605376

約数和(自身を除く): 8793129

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 4327, 12981, 30289, 38943, 90867, 203369, 272601, 610107, 1423583, 1830321, 4270749, 12812247]

約数ペア:

[(1, 12812247), (3, 4270749), (7, 1830321), (9, 1423583), (21, 610107), (47, 272601), (63, 203369), (141, 90867), (329, 38943), (423, 30289), (987, 12981), (2961, 4327)]