211915382487

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1\times {\mathrm{47123}}^1$

素因数の和:47731

約数の個数: 32

約数和(自身を含む): 293800421376

約数和(自身を除く): 81885038889

約数列:

[1, 3, 43, 71, 129, 213, 491, 1473, 3053, 9159, 21113, 34861, 47123, 63339, 104583, 141369, 1499023, 2026289, 3345733, 4497069, 6078867, 10037199, 23137393, 69412179, 143866519, 431599557, 994907899, 1642754903, 2984723697, 4928264709, 70638460829, 211915382487]

約数ペア:

[(1, 211915382487), (3, 70638460829), (43, 4928264709), (71, 2984723697), (129, 1642754903), (213, 994907899), (491, 431599557), (1473, 143866519), (3053, 69412179), (9159, 23137393), (21113, 10037199), (34861, 6078867), (47123, 4497069), (63339, 3345733), (104583, 2026289), (141369, 1499023)]